Breakfast is definitely back open, but I don't think dinner is yet? Just got home from there and they were still advertising different types of build-it-yourself bowls, etc. (We didn't try to eat dinner at SOG on this trip)
1. The reservation falling off thing is a pain but it's not enough to deter us from staying, the location is awesome and rooms are spacious - we also don't spend a lot of time in the room but it's nice to spread out, especially in the mornings when getting ready to scoot out the door.
I recommend keeping your reservation # easy to access and making sure everything is still on
MDE the day before arrival. Before we checked in I doubled checked since mine fell off 2x over the past several months and thankfully it was still there. Sometimes Disney IT needs to intervene to fix this, but usually I can add the # back in and it shows right up. Unfortunately, that won't help for ILL though if it happens day of (I hadn't heard of this happening but can see it occurring...
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2. For MK, I 100% walk to Poly and use Disney transportation. It's way faster (DD and I tested this one morning and I beat her enough to do 2 rides before she even tapped in, lol)
Prefer to drive to DHS or AK if we have a car, but this trip we used SOG buses and it was fine. Usually, SOG buses drop AK first, but this time they surveyed how many people were going to each park and went there first. On our DHS day (D+ day) they dropped DHS first then went to AK. Not sure if that was a special case but someone else I spoke to said they were asked and the majority ruled on a different bus ride. May depend on the bus driver? First time we've seen that happen.
For Epcot EE I recommend aiming for the 1st bus, 2nd at the latest to arrive at Epcot before EE starts since you might get held up at the TTC. (edited)
The one good thing about SOG transportation is you always know when to expect the bus. It was very late one night at DHS after park close ( I wondered if AK filled it up too much?) and I think one other morning, but mostly is pretty timely.