Features
SpyAgent has all of the features that you would expect from a full-blown monitoring program and then some. Unlike some competitors, SpyAgent records both POP3 (received) email and SMTP (sent) as well.
The thing that we liked best was the ability to block a user's access to certain programs like IM and Chat applications or to web sites. SpyAgent also contains an effective but rudimentary filtering system that allows you to employ keyword based filtering.
While most beginning users will probably opt to go with the default settings (which SpyAgent makes an easy choice to do) there's an amazing amount of customization available in this program. You can tailor nearly every aspect of the program to meet your individual needs.
This turns out to be part of its downfall, too, because (especially on the first few times using the software), you can find yourself lost flipping switches and levers and wondering if you're making the right choices in doing so.
Ease of use
If you opt for the default set up, the program is quite simple to install and use. For us getting to the meat of what these applications offer is being able to tune them to do your bidding and keep an eye on things so you don't have to (or at least not so much).
This is one place where Spy Agent is a mixed bag: easy to use in the default setup; tougher once you step outside that configuration.
Monitoring effectiveness
For the most part, SpyAgent does a solid job of keeping tabs on your computer. One big oversight in the program is that the recorded keystroke data is unformatted.
Since every touch of the keyboard gets recorded the data can be hard to make sense of since you can see every delete, tab, control, shift, and return key pressed.
Sure, all the information is there, but just
try getting at it when you need it most. At times it can be difficult to make sense of the recorded data (at best) and a even mess (at worst). There are definitely better keyloggers out there.
Accessibility of information
They offer two means for checking info off-site. You can have the information emailed to you (which is a bad idea from a security stand point) or you can have reports uploaded to an ftp site.
FTP is also not a very good option since your data is sent in unencrypted clear text and
definitely requires some technical fortitude to do.
Customer Support
Their customer support is less than we'd like to see: it's email / web based
only with no option (even at your expense) of having a phone call with a live support tech.
It's not the easiest program to use, and some may say that it has too many options, but as perhaps the single most feature intensive monitoring software available, Spy Agent by SpyTech is still a standout performer. 
