as an 'early access' price, is this considered a discounted rate with plans to increase later?
A few questions.
Did they do any cost/value testing with potential customers?
Who is it for? customers who do this every week or every 5-6 months. The price suggest the first.
SaaS model often doesn't make sense for users. Why do you need software in the cloud when working with local files directly would be much better?
That's why we sell Pinegrow Web Designer (http://pinegrow.com - I'm the author) as a normal desktop app. It has full support for Bootstrap, Foundation and plain HTML.
But web apps also enabled subscription/SaaS models. Before you used to have to pay for upgrades. Which was/is ok, but web apps are always the current version and most up to date. So they are maintaining and extending it at all times.
I hate it too. Especially for relatively simple utility apps like this that don't really provide a lot of ongoing service apart from hosting the app.