Yeah, the smaller older 224s are great - totally reliable and excellent repeaters.
The older 234s are bigger (like the newer 244s you pictured), but they are power reporting. The 234s initially had a bad connectivity issue, but a firmware update fixed that. They too are very reliable and good repeaters (in my experience anyway).
I don't have any of those newer 244s - I'm guessing they are power-reporting too, but I have no idea how they are otherwise different from the 234s.
HI All, thanks for the responses. For those at Innr- thanks for noticing that at least one customer likes the smaller form factor. For others, thanks for getting me up to date on the situation. Much appreciated!