I've had both an 18"(med) Old Smokey and the electric smoker when they were called Redi-Smoke.
both were great cooking tools
my favorite cook in the OldSmokey was whole chickens on stand up chicken rack cookers
and my favorite cook in the electric smoker was turkey
http://oldsmokey.com/if I was buying a new one I'd buy the 22"in and rig it like a Weber
it has a better lid and venting system than the Weber
and they are less than half the price of a Weber