Opps - sorry Mike - I missed this.
But, yeah, Larry nailed it.
The overall design is the same, but, they do use a different power unit in the DIY and Pro versions.
I don't have one myself, but, I'm strongly considering one since I want to put hardwood floors in my dining room and living room.
They make & sell a small hand held nailer - similar in size to an 18 ga brad nailer, that has an angled head that fits the tongue, for getting in closer to the wall than the traditional flooring nailers.
https://www.homedepot.com/p/WEN-4-in...FUbGwAod3bIFNg
If the $299 Primatech can get in even a row or two closer, without having to buy the small 18 ga type, it's worth it to me.
One of the more nasty aspects of laying a hardwood floor is crawling around, drilling and hand nailing the boards that are too close to the wall to use the big flooring nailer.
I don't know why that bugs me so much, but, it does.
"Life is what happens to you while you're busy making other plans." - John Lennon