I also have a T/O Royal 1000-1 that works very well, except the dial cord broke last year sometime, a couple months or so after I won the radio on ebay. Mine is on its second set of batteries since I got it; it would probably still be on the first, except a short in the AC adapter jack drained the first set within perhaps an hour or two.
Haven't replaced the second set yet. Someone on another forum (Google, IIRC) told me that the solid-state T/Os draw very little current, so a set of batteries should last a very long time, even if the radio is accidentally left on all night. I think that's amazing--a big radio such as the T/O drawing so little current, so that the batteries will last "practically forever" as MrFixer put it. That's something I would expect from a small pocket transistor portable, but not from any set the size of any of the SS T/Os.