I also answered the OP's question. I do not find Oceanic computers difficult to use but have been using them since 2001. I do find the NDLs between Oceanic Pelagic DSAT algorithm and Suunto's algorithm to be significantly different. To each their own.
Good diving, Craig
I said MOST, not all
Also, I didn't say the Oceanic was difficult, just that the Suunto was easier without reading the manual. The Oceanic computers are a little more challenging to find the sub-menus, but that's just my opinion. I've used the OC1 for years, and still do. Before that, I had an Atom 2.0, and before that an Atmos. I do like Oceanic computers.... don't get me wrong.
Also, while the algorithms ARE different, at deeper depths, the difference may be as little as a minute. If you look at the chart provided by Oceanic... You'll see their NEW algorithm is pretty much in line with the Suunto