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Oh struth... Please don't say that you're actually recommending Suunto computers over Shearwaters. It's like little league over the New York Dandies (I don't do sport).
Suuntos: recreational toy computers with ridiculous conservative settings which lie about basic facts, are difficult to use (how many buttons with short/long combinations), lock up if you've dared to ignore it or change modes, and have proprietary decompression algorithms that keep you in the water too long. Batteries which will give up when you need them (their warning is that the battery's failed just before you dive). It won't let you change gasses until you're above the MOD (which is wrongly calculated), so have to go to 5m to switch to 100%.
Shearwaters: extremely reliable, usable and dependable dive computers used by most technical divers and the majority of rebreather manufacturers. A single AA battery available anywhere. Algorithms which are basically open-source so there's loads of planners. Extremely clear in the water and exceedingly easy user interface (vital if you're befuddled underwater). They have "tech" modes with more info and "rec" modes for simplicity. They don't lock up if something's gone wrong. They allow you to change GF-Hi if you're in the poo and need to get out quickly.
In other words, Shearwaters are designed by divers and work with you, whereas Suuntos seem to have been designed by people who don't dive and they spend their time working against you.
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Shearwater dive computers are a bit like Apple's iPhone: when they came out in 2007 it was a breath of fresh air and a vision of the future, compared with the previous generations of phones, PDAs & Blackberries.
I'd had three different dive computers before I bought my first Perdix. Rented Suuntos early on which were only depth gauges and timers, had an XDeep Black (now there's an unreliable brick), and a Suunto D9tx ('cos I believed the hype and didn't know any different).
Needless to say the Perdix was an utter revelation; reliable, easy to use and just worked. Just like my iPhones.