Low memory is knockout Krtierium

There are already many reviews here - so I would just like to add my point of view.
Have the Xperia J now for about a year. Was my first smartphone - and I thought, with just under 200 euros and the names Sony front plan do you get a certain quality.
It took me explicitly not a smartphone that can do. Use no WhatsApp, Facebook etc. are important to me only a few apps like that of Bahn.de (very useful).
Overall, I am very disappointed for the following reasons:
1. There appears to be an integral part of Google / Android strategy, but I find it absurd to have pre-installed on a device estimated 20 apps, of which I max. 5 Need - the other 15 but can not uninstall. I can not even as 'tiles' delete (only from the home screen). Absurd.
2. That you these apps not delete only can deactivate is on a 'external' SD card to move twice absurd in the context of the obviously much too small-sized memory and the inability Apps. So after a short time, both the internal phone memory as well as the 'internal SD card / internal memory' fully. Although I have a few apps installed in addition (about 5), I may already exist in some cases no longer update (Error message: insufficient memory) - but as I said above, I can not remove them also. This is doubly absurd !!
3. Another problem is that the 'People app', so the phonebook has hung twice and each time all (!) Contacts were lost. Synchronize with the Google Account that is recommended, has not worked. Now I have found that you can make a backup to the internal memory - that might work.

Conclusion: During last problem perhaps excusable is (somehow have all the modern equipment in the computer field somewhere Macken, for the product cycles are too short), I find the limit or overcharging of storage is a fundamental design flaw. That would be like a camera that takes 10 pictures, or a car that only a 5l-tank has. Simply inoperable constructed. That should not be!