When comparing Pandora vs Digitally Imported [DI.fm], the Slant community recommends Pandora for most people. In the question“What are the best music streaming services?” Pandora is ranked 9th while Digitally Imported [DI.fm] is ranked 13th. The most important reason people chose Pandora is:
The Pandora music streaming service is the best at predicting which songs the user would enjoy hearing. Unlike services which have rudimentary recommendation algorithms, Pandora uses over 400 selection attributes that are combined to form over 2,000 focus traits including rhythm syncopation, key tonality, harmonies, and instrumental proficiency. Not only does Pandora use this plethora of conditions to determine each song's inclusion in your station, but it also displays the specific reason that each song was played, as well as its relation to your input criteria.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Most personalized radio experience
The Pandora music streaming service is the best at predicting which songs the user would enjoy hearing. Unlike services which have rudimentary recommendation algorithms, Pandora uses over 400 selection attributes that are combined to form over 2,000 focus traits including rhythm syncopation, key tonality, harmonies, and instrumental proficiency.
Not only does Pandora use this plethora of conditions to determine each song's inclusion in your station, but it also displays the specific reason that each song was played, as well as its relation to your input criteria.
Pro Easily learns what you like and dislike
The Pandora music streaming service allows you to rate each song played with a "thumbs-up" or "thumbs-down" to signal your opinion of the song that is played. The station incorporates every single rating to intelligently learn your preferences over time, resulting in an extremely tailored station based on your input.
Pro Extremely versatile stations
Unlike other music streaming services, Pandora allows you to create a station from a single song, artist, album, or genre, and the service has a huge library of over 800,000 tracks from 80,000 artists.
More importantly, Pandora lets you mix and match an unlimited number of input criteria to create a station for any mood/style/occasion.
Pro Available on mobile and in vehicles
Pandora has an application on all major mobile platforms, including iOS, Android, and WP7. In addition, it is available in numerous vehicles as an add-on, many with voice commands.
Pro Predicts what you like with great accuracy
Pandora's music genome algorithms are eerily accurate to the point where it can be considered a personal DJ.
Pro Free
Being available for free means anyone can try the service in order to see if it appeals.
Pro It's the digital version of that friend that knows music better than you and also knows what you will like
A go to source when you want to hear something new that you will like.
Pro Premium Streaming
Premium is just like any other paid streaming service for the same amount. It does the same things and has a a comparable library. With the personalized radio it makes it a force that is often overlooked.
Pro Dozens of genre-specific channels
DI.fm currently lists 89 distinct channels, each representing a different sub-genre of electronic music.
Pro Cross-platform
DI.fm has apps for iOS, Android, Blackberry and Windows phone.
Cons

Con Not available outside the US
For those that live outside the US, the service is not available to them, which greatly limits users from around the globe.
Con Limited bitrate
Most songs played on Pandora Radio are 128 kpbs bitrate. That being said, the paid version of the service offers songs with a bitrate of 192 kbps.
Con Limited skips
Pandora makes it very difficult by limiting your playlist to only a specific song or artist. The player also does not allow you to rewind or repeat any songs.
You are only granted six skips per station per hour, and even this is limited to 72 skips per user per day. This is often frustrating if you are trying to focus your playlist on a very specific music selection.
Con Rips artists off
Only Youtube pays artists less than Pandora. Spotify has been under fire for not paying artists enough, at $0.0044 / play (as of march 2018). Well, Pandora pays less than 3 times that! ($0.0013). Tidal pays artists roughly 10 times more ($0.0125).
Con Frequent advertisements
The free version of Pandora has frequent audio advertisements that are injected every few songs, making the service impossible to use in a party-type setting. However, these can be avoided by paying for the premium edition or by using other ad-blocking software.
Con Limited artists
There are only 1 million songs on the service. This means there are a lot of artists missing.
Con You have to sign up
You can listen to DI.fm for half an hour before you're asked to sign up for a free account.
Con Advertizements with the free account
If you have a free account, the music stream is interrupted fairly often (every few songs) suggesting you upgrade to a pro account.
Con Occasionally the channels won't connect
Every once in a while, the channels won't connect and you have to wait some time and try again.
Con Electronic only
DI.fm is electronic-music only, so you'll be limited to exploring within that genre.
