We are new clients, so I will come back and update this review, but so far we are very pleased. Eduardo, the founder, is easy to work with and knows his stuff. Our office building had suffered from a period of employing a service crew who really didn't care. So, having Service by Isabel is like a breath of fresh air. It's nice to see the attention to detail! So far, we are very happy we made the change and give them two thumbs up!