I like that it's easy to use, has many features for tracking and reporting of mailings. It is also very customizable which makes it perfect if you have specific needs. There are some limitations with the software such as not being able to track more than one mailing at once or only having access via an internet browser instead of desktop application. If your looking for a simple solution to prepare bulk mail then this could be what you're after. We've been using PSAver since we started our business in 2013.