The support is superb - I have had many issues with my account over several years but they always got back to me quickly! They are able help you fix anything if needed or just give advice about what would be best for your business needs as well how it could work better in future etc..
There can't really think any bad points at this time which was great when we started our project using their LMS platform (which has now been discontinued). It's not cheap so make sure there will benefit from investing into one compared other platforms out here like Hubspot/Salesforce ect.