Tip 1: there is no concierge so you'll have to arrange key pickup time with Kenny by phone.
Tip 2: on a nice sunny day out, walk over to the Nishi Honganji Relics, a beautiful small Japanese styled park in the middle of the busy city for a nice respite.
I stayed with Kenny for 2 days and communicated in Mandarin. Very helpful and responsive. Located few mins walk from Ximen station, he provided some great recommendations nearby to check out for food and shopping. Thanks for a great stay!