At Mimaru they came in daily to empty the trash and change the towels. Then every 3 days they do a full room cleaning.
We opted for the same daily trash & towels service at the Hyatt.

The area around the Hyatt is pretty quiet, but I liked that. Every night we walked toward the Sanjo Meiten-gai / Shinkyogoku / Teramachi Shopping Streets area for dinner. It was an easy 20 mins walk each way.

As far as proximity to sightseeing, we used a combination of subway, JR, bus and taxi to get around. The bus stop and subway stations were within minutes from the hotel so it was pretty convenient.