My hair's the polar opposite to Donna's, mine's long, straight and fine but I have lots of it. I've only ever used a single "wash" (partly because I first ordered from wenhaircare.co.uk a couple of years ago and didn't really read the instructions! I use about 12 pumps on wet hair, do the rest of my shower and then comb through and rinse (and rinse well as Donna says).
I didn't really get on with the hair-styling Wen products but then once wenned I just blast my hair with a dryer and my head upside down and it doesn't seem to need much other styling. I passed them on the DS & DH.
Top marks also go to the colour-care I get from Wen: This year I have been pale blonde, medium ash blonde, mid brown, auburn and then used "ColourB4" to return to blonde and my hair is still in excellent condition. Also prior to colouring I don't need to use a clarifying shampoo (like Hairfix) as it never get a build up of silicones or other chemicals.
I'd like the TSV to include a litre size(s) or options of flavours that aren't currently available on their UK website.