The game is easily one of my top favorite games of all time. I still have my boxed copies of the game and it's expansion. Seeing it on GoG was a dream come true. I've been wanting to buy it digitally for the longest time. I've only bought a few games from GoG, but they've all pretty much ran perfectly out of the box, and felt like modern tuneups of the older games. SWAT 4 didn't get this same treatment from what I can see. After a bit of INI tweaking I managed to get a proper widescreen resolution and a bunch of other things working, but it's a little disappointing that it seems like this is the same as the old boxed copies just without the DRM. Still it's worth the price as it's a good game, just be sure to do some wiki diving to get it running right.