You know, given the 100's of successful smokers and posts here, it happens that someone can get the opposite.
No, you're not wrong. If you think the Electric masterbuilt will do better, call CS and ask for your money back. That's one thing masterbuilt and most other smokers don't have is a money back guarantee.
It works, as advertised. Turn it on, set it for 12 hours and monitor the temp each hour. What is it?
You said you didn't monitor it, was it on the low side of a cycle. did it never reach temp? There certainly could be other issues, but I'd certainly call CS and explain your displeasure.
here in the forum is venting, CS direct is where you need some action, whatever you prefer, get help or a refund.