These guys were recommended to me about 6 years ago, and I've never taken my car anywhere else since. Very reliable, look out for your interests (ie won't do work unless it's needed) and reasonably priced. They know my car now and look after it much better than I do :-) My wife usually drops the car off, and they've always been polite and explained what they've done etc.

Normally don't go with bigger companies, but the guys who came out to quote were polite, cheerful and helpful (unlike their competitors). On top of that, they were also cheaper.
In short, they did a great job. A competitor that came into quote told us our job was going to be difficult, that we would need to do a better job to prepare the site for them (ie get all the material we wanted shredded out the front) etc. Sapphire just came in and did the job - quickly, efficiently and cleanly.
It wasn't an easy job but they came in, mulched/shredded and grinded the stumps and removed all the mess. No problems.