Rating: Thailand-Very good; Cambodia-Good Overall this was an enjoyable experience and we will be happy to use smarTours in the future. There were a few shortcomings: 1. Almost all sight seeing activity, lunch, dinners were packaged as "optional". Major activities and more dinners should be included in the standard tour package. 2. We wasted a whole day flying from Chiang Mai (Thailand) to Siem Reap (Cambodia) which is a 1-hr direct flight. This needs to be fixed. 3. The bus in Siem Reap was uncomfortable and poor quality. Tour guide was difficult to understand. Our next trip is to eastern Europe and we will certainly consider smarTours as one of the options.