I have some which works but there is many which not. And I think that you can only say that v3 works well with rb1xx if it works on every board.
I used the rb133 only for wireless to ethernet bridge. No routing, no connection tracking, no firewall rules and only 3-4Mb traffic went through. And I couldn't log in, the cpu always 100%, sometimes reboot. This works fine with 2.9.51. So I think it don't work.
I have this trouble not only one router. And what about the rb153? There is the possibility to use more interface, but how if it's slow?