I like my Gekko, and I can say the same for the owners of the other four that will be traveling to Bonaire in less than three weeks.
Oh, and as far as the conservatism goes, I was intentionally trying to bend one of them recently (so I could document what exactly they do -- call it divemaster research :biggrin

. I dove a Gekko in air mode alongside my normal instrumentation on a pair of nitrox night dives, and I even made it about a minute into deco on the second dive, but by the time I'd done my ascents and stops, it had cleared. (If my buddy's air consumption had been lower, I could've bent it. Alas.) On the first dive the next day, I sent it in with a friend in the first group off the boat, who then handed it off on the bottom when my divers (the last group) made it there. Even with that, there wasn't enough bottom time to bend it. I settled for clipping it off to a spool and dropping it over the side for half an hour during the surface interval, which was *certainly* quite ample to bend it (and bend it well).
Yes, Suunto computers are more conservative, but that shouldn't scare anyone away. Some people may never even reach their NDLs (given their profiles and breathing). Down in the Keys, I'm pretty sure we'd have had less NDL time than some of the other divers' computers out there, but it was never enough for me to notice on the deep dives, and the NDLs were sufficiently long on the shallow dives that boat schedules were (by far) the limiting factor.
Anyway, unless you're soon to be going tech, it's hard to go wrong with a Gekko. It's simple, robust, and easy to read, and the battery just keeps going and going...
