The email program (Modest) is fine for me with Gmail. Like many others, I decided to pay $25 for a year's subscription with Nuevasync in order to get push Gmail with contacts, calendar and tasks (Toodledo not Google) and it's working well.

MfE does not seem to be a major power drain and I have no speed issues, but then I only keep 20-50 messages in the inbox. To find any messages that have been moved out of the inbox I use search in the web browser.

I did try Nokia Messaging in combination with Neuvasync's free service but I wasn't that happy with the configuration options for Nokia Messaging.