I haven't had Apple TV very long. I'm able to get my iPhone 4 to pair with my Apple TV. I haven't figured out the process to do the same on my macbook(late2009). If this is possible I would appreciate a little help.
It works well for extending the monitor, only AirPlaying audio and mirroring only video. When you start trying to combine the services, it really slows down. They have a free trial. For 90% of my needs, it works superb.
I have tried it, I wasn't impressed. I suppose it's down to what you want to get out of it, if acheiving doing something is more important than being able to enjoy doing something, then I guess it's worthwhile software.