The Amari hotel chain always has good industry rates on offer and their properties are all very nice. Use a tuk-tuk to get around - only way to beat the traffic, but negotiate price first if you can! Allow 3-4 hours to get in and out of town to/from the airport as pending the time of day, it can be a absolute nightmare. Eating is not as hit and miss as some Asian countries. Of course discretion and common sense rules, but don't let horror stories of back alley eating places put you off trying some of the more out of the way eating places.
Cheers.