I wouldn't stay long in central San Jose but this is a great place to stop over!
I stayed at the Kekoldi a couple of years ago. I'd arrived in San Jose late evening and was stopping over in the city before carrying on to the coast the next day. This is a small hotel, clean and well managed. The breakfast area really is as nice as it looks in the photo! It's close to Avenida Central which is a great place to go for a stroll and take in a little pura vida.