I do the big wash with tech wash and TX direct twice a year, spring and autumn, and a quick rinse through in between if need be, though I know a lot of people do more than that. I wear the jacket pretty much every day in the winter.
I have Cascada trousers for the winter, which go on a bit less often, and Velez for the summer, but I am luckier than pauldawes and find the Velez waterproof. I just hate wearing overtrousers!
I find it all really comfortable, but the jacket is a bit warm for most of the summer.
Paramo seems a bit marmite, you love it or hate it. The only bit of gear I didn't get on with was a pair of light summer walking trousers, can't remember what they were called.