i can thoroughly reccomend them there are a couple of cheaper options non worx around now. i have just ordered a second battery as a standby. i cant stand for long so i take my campimg chair and i can do the wheels and the sides of the car sat down. the autoglym snow stuff is great because unless theres really stuck on crap you dont need to sponge the car. the first snow you spray on leave for 10 minutes wash off then spray the shampoo snow leave for 10 and wash off then theres a spray on polishsealant if you want.
really handy now as the road where i park is 15m from house and no driveway etc.