I've had some very positive results with EUClaim.
Initially I thought that I would be able to handle a claim just as well myself, throw in some legal jargon, but I did not manage to get through. Usual excuses, etc...
I then turned to EUClaim. They do take a large cut, but they did manage to get results.
Since then I always immediately turn to EUClaim - no worries myself, a lot easier than launching a law suite and a pretty good ratio of success.
I agree Gargoyle... it's always better to get a piece of something than all of nothing.