Yup. Have used it for years too. It rings all of my devices and filters out spam texts. Also quite nice getting an emailed transcript of voicemails.
For those who haven't tried it, you can use google voice as your voicemail for your cell phone without using any of the other features. So you can get voicemail to text for free from google, instead of paying a monthly vig to your carrier... plus you get to keep your voice mail box as it is when you move from carrier to carrier.
It is a nice service, and you can't beat the price. With the text-to-speech and streaming audio, I never dial in to my voicemail account.
Setup under Verizon was a minor league pain, but switching to T-mobile was a breeze - I just used the "google voice" option on the phone's voicemail menu and it switched my voicemail to google. So I didn't lose any of my saved messages, I didn't have to redo my outgoing announcements and I didn't have to learn new prompts. Very pleasant experience.