The Zoop is basically the same as the Gekko, a very simple reliable computer with a good track record. I have read issues with other models of Suunto but the Gekko/Zoop has not been one of them. I owned for for a few years without issue till I lost it in Indonsia, long embarrassing story. I would recommend a Zoop, yes people talk about Suuntos conservative nature but in reality I've never suffered because of it. If you're on a live-aboard doing multiple dives over multiple days you may notice, but Suuntos are so common, especially SEA, chances are others you're diving with will also be using so moot point.