I only gave 4 stars because I've only had this for two weeks, so not sure of the long-term reliability, but the sound quality is good. When using this handset, callers could not tell I wasn't just using my cell phone. The volume control on the side works well, but also easy to accidentally turn the volume up or down. I had my phone in my purse when I got a call in the grocery store, and the looks I got while walking around with a handset were priceless. This item is only 6 inches long, and while that helps it to fit into my purse, I find that it's a bit small (I'm 5'9"). Part of the reason I bought this is to use it at my desk. I have a Samsung Galaxy Note II, which is a little large to grip for long conversations. I may continue to search for another that is at least 8 inches.