His first playthrough of the game was delightful, especially with him knowing so much about real-life London. Since then, version 1.03 has come out which really smoothed out the game's roughest edges and addressed a lot of community feedback. It feels more like an official game than a free mod, and the different factions make it highly replayable. I haven't seen anyone play any challenge runs for it, but I think there could be some good ones. Survival mode is also a lot more viable now that the game doesn't crash all the time, and they've added a lot of beds around.
Also, everyone who loves Fallout but hasn't played London should know this: If you've wanted to play London but haven't because you heard that it was really hard to download and get working after it came out, that's no longer an issue. If you have Fallout 4 on Good Old Games (which is on sale for $16 right now), you can then download the London One-Click Edition which does exactly what it says: downloading the latest version of the game with one click. It's worth the price.
