I fitted Crud RoadRacers Mk2 on Friday night and had nothing but problems with them on Saturday's CC Ecosse ride with bits falling off, rubbing, etc - clearance on a 54 Triban 3 is very tight, and I would say the official Crud "video" is amatuarish, the guy is hacking away at it with a hacksaw when a stong pair of kitchen scissors does a much neater job.
After a bit of fettling and removal of parts I've got them working without any squeaks or rubs, they DO keep the mud and water off but I'd recommend buying a big bag of cable ties when you purchase these mudguards - you're going to need them.