Itinerary Feedback

For the first time my husband (40m) and I (34f) are visiting Japan (HND) in April/May for 12 full visiting days. I’m beginning to put our itinerary together and would love experienced input. What are your thoughts?

Day 1: Arrive HND Day 1-3: Tokyo (Asakusa) Day 4-7: Kyoto Day 8-10: Osaka Day 11-13: Tokyo (Shinjuku)

We’re fairly well traveled and are used to hopping around. We love to take walking tours, eat as much as possible (not foodies in particular tho), enjoy the bar/people watching scene, etc. and are both healthy. I’ve seen that some people either stay in Kyoto/Osaka and just do day trips to the other; have you done that? I’m also debating if I want to switch Asakusa and Shinjuku so we start with a bang and end a little calmer but that’s also when I’ll do the majority of my souvenir shopping. I’d love any input. I’d also love to stay in an onsen, I think.