Feature Set:  

Though NetZero offers many of the basic features like a one gigabyte email, spam protection, virus protection and pop-up blocker, it doesn't offer some of the extras you're going to receive with more expensive services, like parental controls, remote dial-up and a web filter.

NetZero offers plan add-ons that add features to your connection for additional monthly costs. This is a good idea—you can customize your ISP to include the features you want and avoid high prices by not paying for features that you'll never use.

NetZero also has a plan that allows you to add some of NetZero's features to your broadband or DSL connection.

Service Area:  

NetZero offers nationwide service. Because it runs through your phone line almost anyone can subscribe to NetZero (You can check on their website to see if the service is available in your immediate area).

Connection Speed:  

NetZero HiSpeed 3G claims speeds along the lines of broadband, however you're are still pushing information through a 56K dial-up line and not a true broadband line, so there are limitations. NetZero uses data compression, image optimization, memory enhancement, continuous optimization and pop-up blocking to increase the speed at which it takes to load sites into your browser making it one of the most efficient dial-ups on the market.

Customer Service/Support:  

NetZero offers several ways for customers to receive help and technical support including FAQs, phone support and live agent email technical support. The support is there 24/7 and will guide you through switching users and setting up their service.

NetZero offers dial-up speeds as fast as any you're going to see at reasonable prices compared to some of the other leading Internet service providers. If your major concern is low monthly cost then NetZero is a service you may want to consider.