I'm in the same situation (using the Solo3 while waiting for the AirPods). The charging cable is safely at home, and the 40 hour charge the S3 holds ensures I'll be able to charge them there. Pairing to my iP7+ was amazing, it sounds terrific, and it's linked to my Apple TV as well (great to watch movies later at night without waking up the house).
My use case remains to get the AirPods for work and taking phone calls, and the Solo3 for stuff around the house (mowing the lawn, walking the dog, late-night TV, etc.). Currently using the supplied lightning EarPods at work, and really looking forward to going fully wireless (not a fan of wires around my neck, so I will pass on the PowerBeats3).
I use headphones/earphones/whatever exclusively when I'm walking the dog. I mostly listen to podcasts, but sometimes music if I'm in the mood.
For me, I'm looking for comfort and convenience. I've been using EarPods for years -- they are very comfortable for me, but the wire drives me crazy. It's forever getting caught on things, or merely getting in the way. That's why I was so excited about the AirPods -- they seemed like dream scenario.
But then I saw a round-up of wireless headphones on CNN and thought I'd give the Beats Solo3 a try. I'm a little concerned about comfort and marginally concerned about looking like an idiot with big headphones on while I'm walking around. I guess I'll find out tomorrow!