How about making a review of what is missing. Every point should be documented well enough. Than submit it here and to them.

I think that they are trying to develop the phone with us. That was the whole point of having pre-orders: to get it in the hands of early eager adopters. By the time it will be available for others the OS will have a lot of fixes and updates.

They said that they released whatever was running properly, although they have more features on the phone itself but not activated. Anyways it is good news that such a thing exists, and it only means that it will come with a future update :)

You are right, Meego and Sailfish are 2 different systems. They have stuff in common but the later is not is not an update to the Meego OS. Meego OS belonged to Nokia and Intel partnership. Jolla is a totally different company. The OS is still in BETA, because they, as a company have less than 100 employees and want to develop the phone with the community (hence the preorders - they wanted to get the phone in the hands of those interested in this development process). I am sorry you do not have the desired experience which you wanted to. Maybe you can "forget" about the phone for some months because I am sure the experience will be improved a lot, or you can also help by writing down which features you think are missing / bugs as well.

With respect to the 13gb free ... well, on a 16GB Iphone the issue is the same. The total amount of memory which is 16GB should also contain the OS and everything else, hence the missing space. The good news is that you can extend your memory with an SD card.