You can choose to use the in-app browser or Android default. The in-app browser can also be set to force a light, mobile friendly version of a site or a full web page when connected to Wi-Fi. Additionally, it can use hardware acceleration to render web pages faster.
In order to get the best use out of this app, you need to apply a few tweaks to get around some artificial limits, which have been placed on this app as a result of its success. Bypass the Twitter token limit.
You can choose between 5 different themes, including light and dark themes. You can also manually set up Tweedle colors yourself, choose to display avatars or not and what you want actionbar to look like.
Longer posts are cut off so you need to tap each one to see the full post. This bad feature came with July/August 2017 update. Also no default setting for RT when using multiple accounts anymore - need to choose every time. This also came with the same update. Bad update.
You can change what you want shown when swiping left or right - your profile, your tweets, retweets of you, timeline, @mentions, direct messages, who you're following, your followers and favorites. There is no way to set the order of lanes.