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A PP2 was my first computer. I've since moved to wrist mount computers, so wouldn't buy a console computer today, but that's just my preferences shifting.
If you want a console computer, the PP2 is a good choice. It's been a bit since I used it, but as I recall it was fairly easy to use. The algorithm is still in use today. I'd agree with the above, quick disconnect would definitely make things easier. Also, if it has the data transfer cable, that would be a good addition.
Apart from it being monochrome and cable connection (not bluetooth), I wouldn't say it's outdated
This would just be my backup to my wrist computer. Current setup is just pressure and depth gauges.
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I really think you made the right decision.... My wife and I both dive the PP3 Plus with QD and love them. Very easy to navigate settings and options.......AI........and most important for us is the HUGE display numbers for our old eyes. Also, user changeable batteries was a big factor for us. We also both dive with backup wrist mounted basic "pucks" so in case of a primary computer (PP3) failure, the dive is over and we still have some critical data available for our ascent.So the pp2 wasn't nib it was slightly used, no compass, no qd and wouldn't go lower than 250. I passed on it. I found a very good condition (looks brand new) only a handful of dives on it pp3 with compass And qd for $390. So I picked that up.
See page 33..... 
I read that, it's still kinda vague. A detail pic would have been great.