Main 2 thing that i need and missing from vm2 is order control, and downloadable content. For downloadable content there are 3rd party plugins already which can work fine, but controlling orders is a bi mystery to me. In vm1 there was control of every order, like possibility to add coupon, change product, add or remove new products, change payment methods etc... I don't see any of that in vm2
Order management is slowly being enhanced.
You may have to wait until 2.1 for the ability to add a product.
2.0.21 has just added the ability to adjust the prices of an item.