With Genie+ I felt we were better off with fewer ADR's. For us, most table service offerings are somewhat stale, especially when I look at prices. On our most recent visits, some of our favorite meals were nights where we ate late and wound up getting carry out from offsite, because most WDW options had closed. We had a car so we ordered ahead, and the pick-up was easy.
For G+, we had great luck using the Atomic time app. I highly suggest adding it to one of your phones. Have one phone call up the Atomic time and use the other to get your G+ and BG at exactly 7am. That made a huge difference on our most recent visit over our prior visit.
Mind, our mornings were marred because we bought the dumb plus magic bands, and they were just an aggravation and a waste of money. If you bought them, and happen to have an old set of bands, bring the old bands. Also be sure to bring some rubber bands. We had to resort to twisting rubber bands around them to keep them on our wrists. The more we took them on and off, the less they wanted to stay on our wrists. We also found it helpful to get a small back-up portable charger; one that is compact to carry. We didn't need a ton of charge, but a little extra juice came in handy. On top of that, having a very short connecting cable was helpful for charging on the go. (both inexpensive.) Our hotel rooms had quite a few outlets, but if you'll be using the new bands, consider getting a small surge protector power strip. The nightstand was a snarl of charging cables!