First of let me say I think the S6 is going in a great direction and the new RAM and CPU is going to be great.
That said I'm a little disappointed in the direction the new case is taking. While I love that they are adding a trackpad to the keyboard I wish they kept the same case design as the S4. Having had a Surface Pro 4 with its kickstand its just not useful for when the device is sitting on your lap. It doesn't really sit there comfortably or stable while typing or using the trackpad. Whereas the current setup the S4 has worked really well when it's sitting on your lap. I'm hoping that maybe they will later down the road release a similar S4 type design or that a 3rd party makes one for the S6 that has that design.
The only other complaint is the new SPen. I'm a huge fan of the SPen for the fact that it never has to be charged. I don't even have to think did I remember to charge my SPen? The need to remember to charge a stylus is really what turned me off of the iPad Pros as its just not something that I could ever remember to do. I'm a little concerned with the early hands-on reviews that say if the SPen gets jiggled just a little it stops its charging on the back of the S6. That said if it's like the other Samsung products with a SPen you should be able to use the other not charging ones on it with no issue.
All in all, these are not big gripes just things I will miss about the earlier Tab S4 model.
