Myself and a few track rats I know run these and have for ages. They work as you’d expect, are adjustable, durable and available… some of the other models I’ve seen in use that do not have the “basic looking box section metal frame” but rather, fancy looking plastic moulded frames, look to flex A LOT whilst in use, like a bounce almost. People still seem to use them just fine though so, meh. Whatever is in your price range and pickup/ deliverable I guess, go for it.
Pro: You can’t roll off the edge of these with the radius ends. I have come off the edge of others, but I was very new to it then. After a while it really is no biggie to sit up no hands, have a drink, heckle and so on
I’ve got the Jet Black R1 rollers, can’t fault them, I also have used the feedback omnium trainer lately (on loan) and for geared stuff seems awesome because it ups the resistance as you up the effort, I didn’t love it when I took it to track, but I spoke to the rep and he said you can flip the rollers and reduce the resistance dramatically, which would be sweet for track warm up/down, but even then, for track I think I’ll still prefer the free rollers
I’ve used pretty much every type under the sun, and own a set each of Minoura Action and Jet Black R1.
Of everything I’ve tried, the Minoura ones always feel the nicest. Conversely, I absolutely hate the TACX ones. The barrels feel horrible and I dislike the way they tend to bounce around. Some people swear by them though, so it’s all really down to personal preference.
Best bang for buck is probably the Jet Black ones. From memory I think I got a brand new set from Pushys for around $150 delivered.