I have 2 electric smokers. I just got the new one once because it has 2 things i think the first one was lacking. Both of mine are MES 30" the first is an analog. what i don't like about it is that it has a small hole for the air venting. and the second is it has a control knob so you have to play with it to get the temps right.
My new one is the MES digital. it has air venting system that i can open and close and beable to help control the temp. Also it has a digital temp. so i jsut type in the temp i want. it comes close. then i jsut adjust the venting like i do with my offset.
No you can't do it in the house. I think that airflow may not make as much of a difference as it does on the offset but i will say i am liking having an option on mine now.
I think the most important thing is to get the brand and find out because i know some are really easy to work with and others
That is just my $.02
Jess-NBBD (still learning) Imperial Kamado (restoring) MES 30" Digital