I just got both the 610T and 620 remotes and the 610T is a so much better remote in all respects. It feels solid and is much easier to learn new commands into. It also feels much better to hold and the 620 is a plastic piece of junk in comparison.

I also dislike the feel of the buttons on the 620 and I find the layout to be awkvard. To bad the 610T is nearly extinct and very hard to come by. I managed to get one brand new still in the original box and am very happy I got it.

I've had several Philips Pronto remotes but the 610T in its simple form is the best remote I've had. No fiddling with chargers and no need to look to closely at the remote when you use it.