The unit is certainly pretty good value for money but I think, to be fair to potential buyers, I should state the following....
Upon dismantling the handpiece I was singularly unimpressed with the construction. I know it's cheap but there is no excuse for the deficiencies detailed below
1. The fan is a bastardised COTS product butchered to fit the case and in Dave's unit butchered is the operative word.
2. The fan does not rest in moulded supports within the handpiece, it just floats in the rear void directly on top of the small PCB.
3. The fan has a metalised label that is in close proximity to the above mentioned small PCB solder side...not a great idea ! Insulation should have been placed over the PCB.
4. On my unit the neoprene fan output air director was poorly installed semi obscuring the fans exit port and not permitting correct seating of the neoprene air director within it's 'mounts'.
5. The fan air intake ports are located in a small area on one side of the handpiece and so may be obscured whilst in use. A greater number of air intake ports could have been designed into the handle moulding to reduce the chances of obstruction.
6. All heater related cables are pinched between the neoprene air director and the side of the case. No cut-out is provided for them.
7. The handpiece cable strain relief is held in place with a cable tie rather than being a moulded type. Not a biggy but still crap.
For the money it is still not a bad performer but it is also no work of engineering art and has some pretty poor design faults that could have been easily sorted at little or no cost. It's rather like a cheap hair dryer.... bloody awful quality but still dries yer hair
Caveat Emptor.