For me, this the example of the perfect SaaS Landing page because:

1) It introduces the problem of not recovering most of your abandoned carts.

2) It explains why their current tool (= email) is not ideal.

3) Shows the amazing results they are getting which are 3-4x better than emails.

4) Since they only make money if you increase your revenue there's no risk in trying it out.

5) It's great because I wrote it :P

Since I wrote this page for a client I can tell you that this great copy and great product explanation generated a massive increase in qualified demos :)