Aviator 101, Maybe im going against the grain by advising you to consider Alpha (ex Bond). As has been said ad nauseam here there are no guaranteees with anything.
I did my TR with Bond Nov/Dec and found the instruction level top notch. The admin people are very accomodating and show an interest in your progress.
I have no experience with line training as i got a job offer while i was training and a few others airlines expressed interest once i finished. Do your research and look into the job market before you commit. time of year you start can make a big difference as not all airlines recruit year round. I know of people who have completed TR's and not had a sniff for over a year.
If its only the TR you are interested in then Alpha are highly recommended.