Yes, I got a trainer a few months ago and it really helped me. I didn't have alot of weight to lose, but mainly wanted to tone up.
Like others have said, the appointment thing helps me. I know I am committed to meet him at a certain time and I know he will make do the entire work out. When I go on the days by myself and sometimes can talk myself out of going and then don't do the full work out. So, he definately keeps me on track and motiviated for sure
I do recommend it!!