My husband and I did this tour recently and we were very impressed with our English speaking guide, Tanya. We were collected from our hotel and dropped off close to the Palace. Tanya was very knowledgable about the Palace and the surrounding buildings. We did the tour in the afternoon and it was extremely hot, and very crowded and recommend trying to do the tour earlier in the day, if possible.
One of the most amazing sites on earth ! Pick up and ride back to the hotel were right on time. Andy our guide was excellent with good English. The last time I saw the palace was 17 years ago and I noticed a number of changes. Also, the large influx of tourist, mostly Chinese, have greatly swelled the crowds.
The beauty of this site makes in the number 1 thing to do when in BKK. Id do it again in a heartbeat even though this was my 3rd time through. This tour was faultless.