I can vouch for the Alpha 60. That is what I used last year to learn with. I really liked the larger 60 size over the 40 sized trainers. I have since donated it to the club I fly at for others to learn with. I am sure there are many great trainers available, but only have flown the Alpha. Very durable, easy to get ready, and the Evolution engine ran flawless for the 5-6 gallons of fuel I put through it.