The best thing about wurl is that it’ll tell you if your target market has an older browser or not, this way we can cater for both old browsers while still working with newer ones too! Also being able to send emails from within my website makes things very easy as well when communicating with clients who are unable/unwilling (or just don't know) how they're meant t subscribe etc..
I have no dislikes of anything really but maybe would like some more features added in which could make marketing campaigns easier? Using our web application users sometimes get confused so having something where people will be notified via email once their account gets suspended helps keep them informed without us needing admin access at all times - also gives me peace knowing there's nothing else going wrong whilst someone isn't using ours properly haha!!