Very accommodating and easy to deal with. Everyone here is very pleasant and professional and will answer any questions you have about any of the products or machines. While using a trial CPAP machine, they contacted me to ensure everything was comfortable and monitored my sleep quality through a modem to ensure that the machine was providing me with the proper pressures and adjusting as necessary. If you are having issues with your sleep or have been diagnosed with sleep apnea, I 100% recommend visiting Aveiro Sleep!