Phone Amego really is an excellent product that does what it says it does, but my-oh-my the preferences panel is far too complicated (and limited).
My major gripe is the price. $29.99 is sort of steep IMO, but at least the application seems to be updated frequently.
My minor gripe is with notification redundancies. If someone texts your iPhone from another iPhone, you get the following flashing on your Mac: a Phone Amego Notification Center notification, an iMessages.app Notification Center notification, and a Phone Amego call status HUD window alert (that annoyingly fades away too quickly). If you were to open iMessages on your Mac and reply, the iMessage notifications clear from the notification center, but the Phone Amego alerts remain. It's just overkill. At least let me turn off SMS alerts entirely or the Phone Status HUD alert for SMS messages (or even better, let Phone Amego only show me alerts for SMS messages and not iMessages).
Ultimately, I just need an application that only shows me the phone call and SMS alerts that I'm not already receiving on my MacBook. It just shows too many alerts right now because it won't let you customize alerts for SMS messages and Phone Calls as separate items (for instance, I may want to have the Phone Amego Call Status HUD 'on' for phone calls and 'off' for SMS messages, but currently it only allows you turn it 'off' for both). Furthermore, while the program may (arguably) provide a feature set that justifies the $29.99 price tag, the price is just far too steep for my limited needs.