Yeah that pattern is called "Pentile" or RGBG. Very annoying indeed on screens where you look right up to the pixels. And it reduces the number of subpixels by 1/3 so the resolution really suffers.
The PSVR1 had a real RGB panel but sadly the PSVR2 moved to pentile.
Oh it works great for me. In fact a lot better than the Rift did with its dedicated trackers.
It's also handy to just pop it on and not have to set it up. I often bring it to the office and I've given a demo for friends, it's much harder with lighthouses.
And the cost of them is just insane. If they were 100 bucks for a couple it's fine.