Hi Sanchez...I started smoking on a vertical propane smoker and was able to produce some great food and learn a lot on it I had a smokey mountain which is similar than the masterbuilt but only had one door. I have also heard great things about the WSM. I think both would produce great food...it just comes down to dealing with propane or messing with wood/charcoal.
I do have to say, that on long cooks (overnighters) its sure nice not to have to get more charcoal going. I also have an ECB offset and have spent a lot of late hours with that thing
. It actually drove me to buy a Rec Tec!
Good luck with your decision. Get whats best for you.