Damp can also be an issue with cliffords. Personally I wouldnt touch one.
Not impressed with Cobra's either.
My last 2 cars have had Gemini's and they have been absolutely faultless.
(But the fitter is a mate and REALLY took his time - I've had the Saph 3 years, and I still havent spotted the module or any wiring which explains why it took 2 days to fit!)
Choose the fitter more carefully than you choose the alarm would be my advice!