Everyone I know of loves the predecessor Tec 2G. The algorithms are the same, with multi-level stops and the Position-Dependent Intermediate Stop (PDIS) in it.
ScubaPro Uwatec is wonderful at service. The software is consistantly updated and always available on the website. Version 2.07 is out now. The infrared means you can use any infrared device - get one capable of 64-bit and you'll have it forever. No special cable means very inexpensive to download, unlike some computers.
Deep sea supply makes a bungee mount for it, so you can buy just the puck. Infrared transmitter is around $10-20 if you include shipping. Device will keep up to 100 dives with full details, so you can hold off on the infrared until you come back.
Disclosure: I have seven Uwatecs; I don't know why people might think I'm biased.