I just got my Ooma Telo unit.  It was quite easy to install.  The whole process took about 5 minutes online and then about another 20 minutes for the unit to download the latest code, etc.  My first impressions are positive.  It just works.  I’ve started the process of porting my phone number off Vonage.  According to the Ooma site, this can take 3-4 weeks.  I’ve disconnected my Vonage router and went to their site and forwarded my number to the temporary Ooma number.  So far the features I’ve played with rock.  I love the fact that if someone calls and has their caller id blocked or a re anonymous, they go to voicemail.  I also love the blacklist, I get a couple calls a week that are automated, they are now no longer going to bother us but get a one way ticket to visit the voicemail box.