Excellent
The experience itself was really enjoyable, giving the best part of a full day with no stops at random shopping outlets that you sometimes get. It was very good value for money, and our guide 'Pam' (from WanderSiam tour company) was just amazing, so informative, entertaining and friendly. The only negative thing was that due to the location of our hotel we couldn't be picked up and had to make our own way to the tour company's office due to how busy the Bangkok traffic gets, which we understood.