YesWare: Email management for GMail; Anyone try it?
 

I just installed it and I have to say it seems like the ultimate email management system, but also a bit overwhelming.

I can schedule emails, get reminders of emails I've sent or are waiting for a response to. I can also see if emails have been opened. I'm sure it does more but that's all I see so far.

Anyone else use this long term? Is there a better solution?