I don't own one but I do have a PME. If these smaller mounts are anything like the PME, then they will be fantastic. Once I got mine working (it had a problem not manufacturer related,
see this thread if you like), it just points where you want to go. It guides easily and I almost never get a bad subs. I can check focus on another star and come back to the same position (within a few pixels). In other words it does what you expect it to do. That is what you get with these mounts.
I would not be concerned that this is a new mount. It is a mount from Software Bisque. It will work really well, no doubt.