Samir, please don't stop the amazing work that you are doing in developing DPIT Effex. It is presently the _only_ inbuilt liquid simulation solution available for C4d, and the free NET nodes is a big step forward for studios adopting it into their workflow. I have personally tried Effex, and it produces beautiful results.
I think that the frustration we are seeing here in this thread reflects just how badly a segment of C4d users want/need a good, stable and reliable liquid sim system. It is a very specialised need, while at the same time an extremely demanding process. I also notice that it is becoming an increasingly popular request in projects. And as long as Maxon does not integrate this as a feature into C4d, it would seem that you actually have a monopoly over the market!
Given the very complex nature of simulation, and the price point that you are selling Effex, perhaps users would naturally have a high level of expectation of service and support. For me personally, I've always wished the liquid sim features of Effex could be spun off into a separate plugin, and hence priced more affordably.
Sorry to just jump into this thread with my opinions, but I just feel that there is so much potential for this plugin, and it opens so many doors for C4d... under the right conditions it could really blossom! Just look at VrayforC4d; also extremely specialised, very demanding niche, but with great synergy between developer and userbase, it has become a real success for C4d.