You don't show me what I'm signing up for, but expect me to sign up anyway. I'm not giving the man on the street my personal info, certainly not a fly-by-night SaaS.
I think you should consider why I'd sign up with you and not Shopify, who do provide example storefronts. [1]
And your social profile appears empty, you're neglecting a free traffic source, are you going to engage in customer-centric discussions? #FridayFeeling is one of the very SME-oriented hashtags (in the UK, anyway), maybe you can start with that.
Oh, and "Middle is like a Medium for blogging, but just for e-commerce.". Rethink that, please. Half the world isn't in the millenial blogosphere, and your elevator pitch should be impossibly clear. (What the hell's a "Medium"? Why are they talking about blogging? So this is a WordPress?)
It could be a good idea, if you think like a user. That's my two pence.