Yes! We've been using them as a family for around 10 years never had an issue.
Haven't had a kitchen done with them admittedly, but have had a few bathrooms & ensuite's refitted between us, my parents and brother over the years and they've also sorted our boiler out.
We find they're a bit pricey (or our budget is unrealistic!) but the guys are really flexible and will help you find other options and advise where you can save e.g. advised slightly cheaper toilet & basin when we didn't want to compromise on shower etc. I guess you get what you pay for.
New kitchen is next on the list hopefully so let us know how you get on 👍🏻