The hotel's slogan "Full Comfort at Budget Price" is one that you can trust. I was on a four-day / three-night trip with friends and all of us were fully satisfied. There is to say that we are young adults which like to listen to music, return to the hotel in the middle of the night and leave a big mess in the rooms. But there were no complaints at all! First of all I'd like to thank the cleaning ladies for being very kind (i.e. they handed us towels whenever we needed any) and for taking care of all the trash that we left every day. And second but most important of all I would like to mention the concierge at the front door: He was so incredibly kind! He called us a taxi if we needed one and opens the door every time someone walks in. He even remembered each person of our group and as one day, when one of my friends felt sick and stayed at the room, the concierge noticed immediately and asked if we wanted him to call a doctor for us.
I suggest you to take the fare including the breakfast. It is in a small cafe outside the hotel where you can even sit outside. The food is nothing special, but again, everything you need. They offer a great range of fruits, cereal and milk for the ones that like a light breakfast and also sausage, fried eggs and baked tomatoes for those who prefer a little bit more.
One thing you should know: The front desk will ask you for a deposit at the time of your check-in. But don't worry, as long as you don't brake anything you will get it all back. Just make sure you take some cash!
All in all i can say that we really enjoyed our stay at the Ecotel Bangkok. It is hard to find a hotel this cheap with the convenience that makes you think you are in a four star hotel. On my next trip to Bangkok in three weeks, I am going back there, that's for sure!