No Jan, but not because it is not possible to do so, the plan for the private community took me down a slightly different (mobile app/driven) path that allowed other key elements to be included.
If you refer to
this thread it gives an initial indication why I have JReviews/EasySocial/Mijoshop (with all Stackideas products) as the the foundation for developing a community with a multi-store option as primary/secondary considerations.
EasySocial is at the centre, with the main Mijoshop store linked to/available on Facebook and members allowed to buy products with EasySocial Points.
JReviews handles multiple categories of (Store/Non-Store) listings/reviews that integrate completely with the EasySocial Stream and Member profiles.
Therefore members have 2 options as a Vendor:
1. Use JReviews to list products and link to their own external websites (for a fee).
2. Use Mijoshop to set up their own Store and sell products (for a fee/commission)
The 2 options do not overlap.
It took a lot of planning to work out what was the best structure for this community and it will always be different for anyone considering developing an online community environment but as long as you take the time to decide how you wish to build it, the JReviews/EasySocial/Mijoshop (or JReviews/EasySocial/Quick2Cart as Q2C has come a long way since 2014) combination is an awesome set up that allows you to do whatever you want.
I regard all 3 products as outstanding, matched only by the level of support and quality of personnel involved in all 3 companies.
I cannot comment on Quick2Cart as I have not used it (Mijoshop was purchased first before Q2C really developed as a multi-store option) but I use JGive and have a very high regard for the product, support and personnel at TechJoomla.
In summary, JReviews is so flexible you can use it for anything including a multi-vendor product listing integrated with Quck2Cart or the linked but independent route I followed above with Mijoshop and both with work perfectly with EasySocial.
However your primary consideration (imho) should be the best structure to provide the most suitable environment for your community and then decide on the combination of initial software you need that also allows additional elements to be included as the site develops.