Blend Music Site ….does anybody here use it or have experiences posting their work on it

Hello All , 
Long story short , I wound up picking up a copy of Live 9 intro when it was on sale recently and I'm really enjoying the software …
As a result of my enjoyment of this DAW I'm currently taking one of the free online music courses at Coursera  
Introduction to Abelton Live - Berklee College 
https://www.coursera.org/learn/ableton-live 
the course itself is basic , yet I have already learned a number of useful things about Live I may or may not of found out about if I was left to my own devices ….
The grading part of the course requires a peer to peer review approach and I will have to submit and post my assignments …
I'm required to join and submit my Coursera Live class assignments on a music site called Blend 
https://blend.io 
I've taken a look at the Blend site and it seems OK as far as I can tell …
I suppose I will have to come to a decision and decide if I will take the online course proper …  
To do the course proper will mean that I will have to play by the rules , meet the courses deadlines , join Blend and submit my work for peer review  …
My main hesitation  is that I feel as if I have already clogged up the net and the airwaves   ….
I've got ears , I know how to listen and my ears are telling me that I got a lot of half a$$ed Sonic Frankenstein's  floating around out there as it is on Soundclick , Soundcloud and U Tube 
I'm left here wondering , Do I really need to join another music hosting site ? Is a grade gonna be worth it or should I just stay in hiding .If I stay in hiding I may get lucky , people may forget and  I may live long enough to have been forgiven for inflicting all my learning curve musical attempts at all the good folks of this Planet ….
Or I could implement a plan B  , Once I'm done w the class I could pull a South Park , Kill Kenny , and then nuke everything that is not me putting my best foot forward musically …
 
in the mean time I wound be interested in hearing from anyone here that has used Blend to host music …
what are your thoughts and experiences ……be they positive , negative , neutral ,……..
 
thanks in advance ,
 
Kenny