Until they provide mobile apps, you are limited to strictly web services for your integrations and can't use the location-based triggers generated by smartphones and tablets.
Zapier is always watching the health of their integrated services, adapting to API changes and new feature rollouts as they happen, and it shows in how quickly your Zaps activate when triggered.
I feel like zzBots has a user friendly interface. It is easy to use, and feels like a bubbly app. Whether I am on the website or app, I feel like I am in the same place. That is pretty cool to me!
When you first create an account, zzBots doesn't walk you through how to start. This made it so I had to learn a few things before I could accomplish what I wanted. I found the zzBots Youtube channel that really helped a lot in walk through. After I figured out the basics, I was good to go!