Many many people originally played these on the consoles, and like many game that were ported to the consoles, they suffered from poor camera controls, poor AI, and more importantly, poor resolution and shading. The difference between these games on a PC versus a console is immense. You don't blindly jump sideways,, the camera can be freely rotated with a mouse, and you can actually see the small ledges and cracks that you need to jump to. Also, you can properly aim at creatures while jumping, which is very difficult to do with a console's controller. Yes, people learned to do this, but on the PC, it's dead-simple. The second game is great on the PC as well - better than the first. The console version of it is pathetic, though. It simply overtaxed the memory and speed limits of the PS1 so they had to scale back the levels, AI, and graphics. A LOT. The third has very difficult enemy AI on the PC and beautiful water graphics as well. Well worth playing. Get the PC version. It's worth every penny. Twice over.
People always say to buy the newer version of the game, but forget that *everything* that UbiSoft makes now has DRM in it. Removing it is horrendously hard and every time that I've had it get on my machine, it bricks my DVD drive, resulting in me having to reinstall it after wiping all of the DVD drivers out of the OS and manually re-installing them(as well as doing the same in the registry). Full hour long process. I have almost thirty games that I bought over the years from EA games, Ubisoft, and others, that are no longer installed on my machine because of their DRM getting out of control. As a result, I am elated at this move by GoG. I'd rather play SH2 without DRM infecting my machine any day over SH3.