>>7587387Wotafa has a review of Steam Robo/Loco up.
Personally I only have Rod Drill and Battle Robo, got them around $25 each on clearance. They are both good though Rod Drill has an iffy part of the transformation where you gotta flex a part. I find their prices to be a barrier and I'm not big on Machine Robo/Gobots so I don't have plans to pick up more.