Adrian did a fabulous job - second to none. Before the job, he replied swiftly to any questions over the phone, via sms, and email. When he installed the tankless water heater, he was on time, very kind, and very thorough. After he completed the job, he came over one more time to check the system and answer any questions. In addition to all of the above, he explained to me that the installation was actually a bit easier and faster than he anticipated and that he will therefore charge me less. To put it in a nutshell, Adrian is a professional, hard-working, kind and honest person. I can highly recommend him without any reservations.