I also have a 700 and it has served me well for about 2.5 years. Only flameout issues I've run into involved not vacuuming the firebox often enough.
If you're wanting to do a lot of low and slow cooking, there is a PID controller that works if you have the vertical style control plate like I do, it has 3 probes and bluetooth/wifi (and is finally stable and useful again after a firmware update!) and 5 degree controls on the knob (in bluetooth it's more like the 10 notches of the old controller).
I don't think it sears steak as well, but that could be my imagination. Anyway, that PID board is pretty cheap now!
https://www.pitboss-grills.com/prod...cal-110vac-3mp-wifi-bt?variant=41693257040060
I have that and added a side shelf and smokestack and it sits under a sportsman 820-made cover that fits perfectly.