The demo version works well and makes the buyer believe in the product but then after installation (done by your team due to the complexity especially on the server configuration) one start noticing that it is not the exact product on the demo version. You then start to discover that you have to buy some extra modules like deals, featured items and sellers etc. Very complicated payment gateway configuration which is done through your own sudopay system. I had to pay the setup fee of this sudopay plugin only to discover that I did not need to pay. I have written to Umesh and still waiting to hear from him. Alternatively you can add the Featured item module (preferably all mentioned above) and I will be fine. The whole sudopay thing is a distruction for some of us who are used to straight payment gateways without third party fee charging platform.
Shipping module is also not straight forward but I have your technical department assisting. My problem is that I had a live site running on a different script before buying the buy sell script from you and many previous users are getting inconvenienced as it is taking long with the assistance from your technical team though I think they are doing a good job. Sometimes I wonder weather I made the right decision to change but then I remain hopeful be the day. Otherwise the script has many features to be happy about and I hope I could have a fully functional script ASAP.