Go for it. I had a Samsung Tab S2,
which had the 'problem' with the USB port (Had to ensure tablet was connected to RC and RC powered on before booting tablet), which I tolerated!. Anyway, dropped it and screen broke, which (although still functioning), I started looking for a replacement. Not ever being a fan of Apple (cost, iTunes, overheating, poor screen resolution and battery life, flimsy connector and cable etc) I settled on the Tab S3. Yes it's bigger than the S2 but fits comfortably in the RC cradle (albeit at max opening) and offers the same superior functionality. I haven't had any problems. I had to purchase a larger hood of course and then do a small modification to it (hood) as the S3's USB C port is not, for some odd reason, in the centre. But that was simple enough and transferring setup (apps etc) from S2 was a doddle using Samsung app. Oh and the USB 'problem' doesn't exist on the S3. Hope this helps