Sometimes I do find a website that will consistently crash it. Generally I can flush it's cache to fix that. I think maybe twice I had uninstall/install it then reload my app data from backup to quickly return my customizations. Once I had to revert to a previous release and send the dev a bug report.
The features, gestures and add-ons make it great.
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I create a square gesture to toggle in and out of full screen. Is that simple enough?
Unfortunately the iOS version can't float the gesture space. Out of full screen there's a gesture trigger added to the function bar similar to Safari. In full screen there's a toggle out transparency floating at the top right.
Well the gestures aren't preset the way they are in "FullScreen for Safari". Personally I always forget how I've set the various one, two and three finger taps and swipes in that add-on.
In Dolphin I use a circle with a cross through it to close a tab, a G to get to google, a square to toggle full screen, an N for a new tab, various small tipped arrows for up, down, back, forward, a counter clockwise circle to reload, etc. I can see then that the app would struggle with letting you drag the website around and activating a gesture. On the other hand the logic that I apply to my gestures makes remembering them simple for my needs.