The staff were amazing - very friendly and helpful, nothing was too much trouble and no hanging around for tips. The receptionist and daytime security guard get a special gold star - they were great.
We're moving on up the coast the Na Trang tomorrow, then will be heading back to HCMC for a few days before heading down into the Mekong Delta region, and will definitely be staying here when we're back in town.
UPDATE 26 FEB. When we returned to Saigon from Nha Trang, we decided we wanted to stay in a guesthouse for a few nights. We booked an overnight trip to the Mekong Delta, and decided we'd return to this hotel. I came in and reserved the room FIVE days in advance. No problem. I offered to pay the first night, but they said no, no problem. When we turned up dusty, dirty and tired from a pretty rough 2 day tour at 6.30pm to find they'd given our room away - not because it was late, it had been given away the day before. We checked out the one next door which is much, much better value for money. Review here