Excellent service. I booked 2 tours with Mrs Rat via email and she was always very helpful. Unfortunately I did not get a chance to meet her in person but had her cousin Sam as a guide. He is such a nice man. Always on time and smiling and patient with us. He is very knowledgeable about thai culture and speaks English very well. He recommended the best money changer in town. He took us at a local restaurant at kanchanaburi, which sell lunch as cheap as 40bhat and did an excellent fruit shake for 25bhat. I would highly recommend Mrs Rat and her cousin for tours as they provide excellent service for a decent price. We were travelling with a family of 13 pax and we all felt the same thing about Mr Sam and the service received. Thanks again for everything Mr Sam and Mrs Rat.