This is based on a purchase I made in 2019. I do not know if they have changed since then, but I will share my experience.
I've had several lines on my IBAs- McNeil, sonny's,Belanger, international, and premier. In my opinion, Premier is WAY behind on perceived flow and perceived drying performance. At the one site I have premier, I have a 25 year old Belanger arch with 3-10hp air cannons next to it. I bought 3-10s premier to match drying performance. This difference in performance was huge and easily noticeable. Even the IBA sales rep acknowledged the difference after seeing the comparison between the two. In an effort to increase performance I spent several thousand more on trunks, nozzle extenders, and finally added a fourth 10hp blower in an effort to match the performance of the air cannons. The belanger 3-10s still outperform the 4-10 premiers with trunks and extenders, but the difference is less noticeable.
Now in all honesty I priced air cannons a couple a years ago and was "blown away" by the price quote. It was probably twice as much. But more motors mean a longer startup delay and higher installation costs. But just don't buy 3-10s and expect decent performance when that is what you can get with some other lines.
But again in the interest of fairness if I was going to use premier again I would price it with four 15s and it still may be cheaper than 3-10s from belanger. That is the way I would quote it. That would likely give me good performance. And they may have improved their design somewhat in five years.