List builder should allow copy/paste list, like Marketo
As much as I love Hubspot, there's one particular area where it flails in comparison to Marketo -- list builder.
We should be able to easily copy and paste a list (ie: emails) and check it against the database without having to type each email one-by-one. Especially when the list has thousands of people.
Marketo made this very easy. Hubspot makes it a pain in the a... Not good for attracting enterprise customers.