Mad Mimi Rules Us Out
I liked Mad Mimi, its friendly interface (bit girly but fun), ease of use, and the support staff are friendly and efficient... I don't have many subscribers, simpler & cheaper than AWeber, thought it was great. But they've asked me a lot of questions such as what my website was about, and rejected my autoresponder function in the end.
Like Mail Chimp, Mad Mimi's terms & conditions also prohibit affiliate marketing. I'm going back to AWeber...
Mad Mimi didn't cancel my account, so you could still use it to send out newsletters manually (free up to 200 leads), but then that would be wrong as it's against the T&C. So I've just cancelled it completely now.