Absolute Crook. Took my brand new rv in to have them look at the generator that was acting up based on DeMartini RV sending me there. So many things went wrong but the main thing was that he supposedly did 650.00 worth of work to a generator that was running. We never got a quote from him and he just replaced the fuel pump, hoses etc. We never got an oral estimate he just did the work and held our rv for ransom… nor did we get the used parts back when we asked for them and the generator pretty much works the same. He says he spent 6 hours on the generator which I find very hard to believe. Even worst… He did the work on Monday… I had to call on Tuesday to find out what he discovered might be wrong. He called back two hours later demanding payment of 650.00. Then we simply wanted to call the Dealer on a new rig who sent us to him to find out if they were paying for it or if I was. It was literally hours after the job was complete and he would not stop harassing us for payment. Simply put… I doubt he even did any work and he threatened to lock up our rig for two weeks if we didn’t pay him way too much money that he did not quote us for. The other thing is we caught him lying about many things including he said the dealer told him they weren’t covering it… Which was totally untrue because I was in the dealers office the only time they spoke and the dealer told him they were submitting the bill to the builder of the RV.