I have 2 All Rounders and I love them (and there are people on this forum who love the keg king snub nose version which I’m sure are just as good).
I don’t always ferment under pressure but I highly recommend getting a red Kegland spunding valve with a gauge as they are much easier to use than a traditional airlock (imho).
I decided against the fermzilla as it‘s too tall for my fermentation chamber and the dump valve looked like a pain to release. But if you intend to brew, ferment and serve from one piece of kit, then the fermzilla allows you to get rid of most of the trub and that makes it a good choice.
Some say that the fermzilla dump valve is great for dry hopping but I use this with my All Rounders:
https://www.aliexpress.com/i/1005001493355889.html