I did a 737NG type with PremAir a year ago and while the trainers and sim were OK, I would not go there again. The company has a bad attitude and are more interested in your money.
From what I hear, HPA, K &S Aviation in PHX and almost anyone else would be better. If you are only interested in completing a course and nothing else, then by all means go for it. However, the others are FAR superior including backup support, job placement, couseling etc. Some of them will even give you free frefresher groundschool and allow you to sit in on others. Not PremAir. And keep away from their sister company, Global Aircraft Delivery. Nasty folks.....
If I was asking the same question today, I would go with another operator.
Good luck whichever one you chose