I agree on the menus.
It has an overall nice look, there are a few things that can be improved in terms of design like a few non aligned fields and so on, but the information is clear enough.
The main page is a little cluttered, you may reduce the information there and let people find it. As long as I know how to get to the information it should be enough.
I tried the chat and spoke with Graham, easy to use. My firefox usually gets stuck with this type of apps but this one worked nice.
I could not find a contact us form or email. I know, live chat, but what if I don't want to chat?
Every time I go back to the main page I get the 'Chat now' window, not a real fan of it and it is also located to the side.
It may be too wide, I have a 1024x800 resolution and it is a little big for my screen.
I could not see the video (my firefox has some issues with them) sorry
You features page is great, short and easy to read, the prices has TOO much, I know, all that information is required, but when you get it all at once it is too much, maybe show only the most important parts and let the user 'open' the rest. Or something more similar to the 'compare' page, that one is great.
Overall: very good look and colours, but a little cluttered, almost too much. Looks professional and has all the information I need.
Hope it helps.
