You may be suprised to hear that I love mine. I have had it a year now and it cost me £1200 with free fitting as it was one of the first.
Due to a slight back problem man handling my trailor was always a problem, that I no longer have. I have used it to launch the boat but to be honest I use the car most times as it is quicker.
I would definatly recomend one, in fact mention my name.
The powrlaunch guy will be at the LBS if you want to see one working.
I will sell you mine - £20000 plus a free Rib.