This game is fantastic, and you won't be able to put it down for a long long time.  I have over 120+ hours played on my game save.  Final Fantasy VII Platinum Edition features a revamped old soundtrack...that I find 2x better than the PSone version's soundtrack.  Although it takes a while to adjust to the numpad controls, after playing for a while, you'll wonder how you would have done it any other way.  The on-screen controls are bizarre and during scenes such as the timed puzzle in the rocket ship, you'll have a hard time typing in key combos.  Materia allows you to use different magics on different characters, allowing for different characters to use Summons, Magic, and Cure.  My tip: don't give up solely because of the controls---this game is FANTASTIC and although I found the console experience more enthralling and easier to jump into, the PC version was much more cinematic and was totally worth it.  FF7 is by far the best game I have ever played, and you do not want to miss out on this adventure.  My only tip: don't save over the same file, especially before you enter the Northern Crater--you won't be able to exit it if you do.