So I finished the main story on this the other night. Quite enjoyed it overall. The story and missions were really good and well scripted, and the missions themselves were really fun. My favourite was when you had to break into the FBI building and download data. I managed to find a storage cupboard with RC vehicle access to the AC ventilation system. Drove my little car right into the server room, downloaded the data and walked out without anybody seeing me or having to knock anyone subconscious. Felt very 007. My one criticism was that the story missions went on for a couple of hours longer than I would have liked. Maybe it's because I don't get a lot of time to play games, but I was ready to end two or three missions from the actually end, but it just kept going!
The world they've managed to make was very fleshed out, I thought. I've not played GTAV, but I was impressed at how full the world seemed, with unique dialogue and loads to do.
I might go and finish off the few trophies I still have left to do, but Horizon is calling me, and I don't know how much more bullshit I can take regarding certain trophies. I spent about 30 following drunk people, waiting for them to throw up last night, and then spent another 30 driving around wrecking shit, but couldn't get my police rating above 4 stars...
EDIT: Nah, fuck that. Didn't realise there were so many multiplayer trophies and ones that relied on random events. I'll leave it.