Motorola Droid :: K9 Mail Client - POP3 Email With More Features?

I was under whelmed with the email client which handles POP3 (hotmail, yahoo, verizon, etc.) accounts, and was looking for an "Outlook Mobile" type client, coming from my Moto Q. The stock client just seems to limited, aside from having some issues. Looking around, I came across the K9 Mail client and found that it was available in the Android Market. Its only been installed for a few minutes but in checking the settings/features, its much more robust than the stock client. Many more check intervals, options to set default number of messages, delete from server on delete option. The only caveat on install stated that it may have issues with Hotmail (i.e. Plus or paid accounts may have connection issues) but my basic free Hotmail came thru fine.

Text is much easier to read with the white background, black text and 2 line info display. You can also manage identities, and has more features I don't understand, and probably wont use. With my check interval at 3 hours, I sent a test message from my comcast account (not involved with DROID) just now and got some certificate error message from the program (has its own mail folder for errors), when I performed a manual check/sync. I just ran it again and the message came through. I think it may have been SMTP setting issues, but they seem resolved. Based on the the interface and options alone, I think I'll work with this app.