I have nothing but good things to say about this company. I bought a battery powered oxygen concentrator and when I told them what other company's prices were, the knowledge woman helping me was able to not just meet but offer a cheaper rate by $600. I was blown away by how affordable it was. The customer service agent said they believed in making this piece of equipment accessible and affordable by most people and they did just that. I just as on the fence about it because it is a big investment but ai absolutely love the concentrator. It's allowing me to be more active and get out if the house more. I'd highly recommend this company. I ordered the concentrator in the afternoon and ai received it in 2 days which I feel was fast shipping. They're product is made in the USA and serviced in the USA. It came with a 30 day trial period and then a full 3 year warranty. This has opened the door to more independence for me. I'm in my 30's and ai was really missing out on life with my friends. I'm so grateful that I had fabulous experience and ability to make this dream come true because I've been wanting one for at least 5 years if not longer. I'd highly recommend this company to anyone needing a piece of durable medical equipment.