Instruct: Classify the given review into positive or negative sentiment.
Query: Beware of following things before you jump in..

First - let me tell you it is a great service, if you can live with the following:1. You need to keep Cable / DSL modem, a router and a Vonage equipment (ATA) always ON.. so count on some electricity bill.2. When you call someone, the receipient's caller ID will show "Unkown".3. You will not be listed in Phone Book / 411.4. NO 911 service.5. You always need electricity and your internet connection should always be working.6. If you have only 128 kbps DSL connection, then while talking on Vonage phone, you are left with only 128-90 = 38 kbps connection for web surfing.. so you cannot do both at the same time.7. THERE IS A DISCONNECT FEE OF 39.99 WHENEVER YOU DISCONNECT THIS PHONE SERVICE.