Yes - screens are from old UI. New UI is currently in public beta and, as you'll see, dramatically improved:
https://www.scalyr.com/product/new-ui/opt-in
Re: pricing. A much bigger topic than there's room for here on HN, but in short - for a service that can ingest 1TB/day+ of your logs and gives you search times measured in milliseconds, you'll actually find our pricing is not only in line, but below a lot of other commercial providers (Splunk, Sumo Logic, etc.) And when you compare TCO with open source solutions (ELK, etc.) that require a significant amount of effort to scale, it's similarly competitive.
I suspect you're going to feel some competition from Google StackDriver/BigQuery. You can load 300GB/mo (your biggest plan) into BigQuery for about $156/mo including storage.
As someone who is basing our stack on Kubernetes, "effort to scale" is pretty damn small these days!
However, the pricing looks very silly. 10GB/day is toy volumes, and only 30 days' retention, and this for $400/mo? That's not going to fly (sorry again).