Zoop is a fine computer for the recreational diver. It has everything you need. Some people want more, but those are the "bells and whistles".
The only real 'missing' features are a backlight - the Phosphorescent display is perfectly adequate for night diving though, as you'll have a torch anyway and it's quicker to shine a torch than to start pressing buttons.
It has gauge mode - so can be used for technical dives as a bottom-timer/depth gauge.
It has single nitrox up to 50% - more than you'd need as a recreational nitrox diver.
It is good for 99m/330ft and 99 min bottom-time - more than you'd need as a recreational diver.
Suunto RGBM is a well tested algorithm - tending to be conservative, but that's arguably a very good thing.
As Buddhasummer recommends, the DSS bungee mount is a fine addition - a much better way to wear the computer on your arm.
A separate analogue compass is much easier to use. I, personally, wouldn't pay extra for having an integrated digital compass.