After just skimming through the landing page, one thing I want to point out:

I absolutely love the fact that they simply show me what the product looks like. Often times you have to dig through docs and "features" pages just to get a glimpse of the offering. Here it's front and center, screenshots are right there in your face, can't miss it even if you want to.

To other SaaS developers, I say: SHOW ME THE DAMN PRODUCT!

The only step up from this is to have an interactive, radically simplified version of the product embedded in the landing page, with dummy data I can play with it, just to get a feel of the product. Obviously this is much more difficult to get right.