If there is anyone with Vonage contemplating a switch to Ooma, all I can say is DO IT. Even if you pay for the Premier package, it ends up being half the cost.
I've lived in my house for just over 2 years, had Vonage the first year, then switched to Ooma.
Where Ooma Excels:
-Reliability (Vonage's forced automatic firmware updates routinely were buggy, causing my hardware to lock up, which meant I had to power cycle the Vonage unit almost every day to continue making phone calls. I have NEVER had to restart my Ooma Telo).
-Not as susceptible to interpreting voice inflections at DTMF touch tones as Ooma (which make it sound like the other person is pushing buttons on the keypad when they aren't)
-Customer service easily available by phone (although, in my book, NOT needing to ever call customer service is even better than having good customer service!)
But, of course, a word of warning to those porting their number over from Vonage. Even though once you initiate the switchover from Ooma, everything is supposed to be automatic, Vonage did the following to me:
1. Lied, saying the port never went through (even though it did), and charged me for another YEAR of service (which I had to fight them on and got all but $8 back).
2. Roughly 2 months after my port was completed, Vonage gave out my phone number to a new Vonage customer. When I started routinely receiving phone calls for a strange name, one caller mentioned the person they were trying to call recently got Vonage. I complained to Vonage, they (amazingly) fessed up, and said they would make their new customer pick a new phone number.
Once Vonage completely released my number, a quick email to Ooma support got my caller ID information reset, which they took care of promptly.