I had an 18" WSM for many years. It was very easy to use - kept a steady temp with little effort. I just didn't use it enough and gave it to my little brother. He still uses it 10 years later. I've switched to a 30" electric Char Broil cabinet. Not as "flexible" but for the times I use it, perfect. I guess if I were starting over, I'd still consider the WSM for the easiest to use charcoal smoker and the Char Broil for an inexpensive easy to use electric. Both turn out really good eats - not the comp winning stuff - but wonderful for a family meal.
Cheers,
David