I'd suggest to at least read pages 1 and 4 (at least) of this thread:
http://www.scubaboard.com/forums/co...zers/305374-so-you-want-buy-new-computer.html
I've been diving less than a year. I'm glad I did not buy one of the Cressi computers. Why? Because, even though I've been diving less than a year, I bought a much more liberal dive computer and I am having no trouble staying down long enough to reach my NDL time. If I had bought a more conservative computer, I would be being forced* to get out a lot sooner than I have been.
*forced meaning that I choose not to stay down longer than my computers says my NDL is.
---------- Post added August 26th, 2015 at 02:19 PM ----------
Dive Gear Express has the Petrel and the H3 with the same or better prices.
CA price for Petrel 2: $749
Cave Adventurers - Computers - Marianna, Florida USA - Never Undersold!
DGX price: $749
https://www.divegearexpress.com/shearwater-petrel
Air Hogs price for H3: $975
Sub Gravity H3 Wrist Computer | Air Hogs SCUBA NJP Store, SCUBA Sales
DGX price: $775
https://www.divegearexpress.com/subgravity-seabear
I don't even see the H3 on DRiS' website.
I have not bought anything from
CA, Air Hogs, or
DRiS, so I cannot comment on them. But, I have bought a lot of stuff from DGX and their customer service and return policy are both awesome.