Hi Wayne,
I have SD on a Tesco Hudl II mounted on the column along with the same on a Sony Xperia as a back up. With the Air Pilot and Pooley's charts added along with all manuals on .pdf it's even better than having e-flight deck to hand! I certainly wouldn't get airborne without it these days.
Any tablet should be fine to run SD but don't bother getting one with a sim card in it as you can't get much of a signal in flight and hot spotting your phone on the ground works just as well for those times when you have 4G but no WiFi.
Happy flying.