Firstly, I think the component is a great one, but I like everyone else, am waiting in anticipation for the front-end upgrade so users can submit a review. Reading the posts, you have a lot going on and it seems it could be some time before it is ready.
Without putting too much pressure on you, any idea of a time frame? I would love to install it and launch asap but can't without user access and I am loathe to pay $100USD for JReview which I do not think is worth the cost.
Having said that ... if your upgrade is going to be a long way off, we might not have a choice.