Huets can be very good, or very poor depends which fitter you get.
I've had 2 Clifford 650s installed by them both have been faultless, however the install in the Scooby is a bit untidy when you look closely (removing carpets etc.). Locally to me the best guy is Jez at Highdown Audio (was the top fitter/installer at Huets).
http://www.highdowncaraudio.com/
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2005 Spec B 6MT - KiDO tuned (~270Bhp)
Custom exhaust - Cosworth filter - Samco Intake - Tints - Bilstein B8/B6 & STI springs - SuperPro ALK - Whiteline positive shift kit, rack mounts, rear adjustable camber bushes, front ARB mounts & strut brace, 20mm rear ARB with AVO mounts, - Hardrace Gearbox and pitch mounts - Prodrive PFF7's - Front Brembos - Kenwood CarPlay - 1/2 carbon grille - STI front splitter