First of all from the standpoint of ergonomics: the housing is a bit small for my taste, indeed the lower right hand protrudes from the housing, which just be disturbing if one wants to have a grip farm. Additional grip would be welcome. We can buy one unofficial if one wishes (Nikon does not produce for this product range), to be connected with a cable if you want to use the remote trigger. Not very convenient but it is the only solution.
We note the same defect on D5xxx range, only the products of D7xxx ranges D6xx, etc. have a more imposing case.
Then another very important point is the severe lack of external buttons to easily change ISO, white balance, and of course the choice of collimators. You can attributed to the button "Fn" near the button flash management ISO. Then change the collimator (for MAP on a specific point) and white balance, you will necessarily go through the submenus. Does not look anything like that, but quick access buttons allow you to be more responsive on the field and not to miss the key moment. A similar range Canon is much better on that.
I also find that the number of collimator is not enough, only 11. If one wishes to make a very precise MAP must therefore review the framing accordingly to have a collimator near the point at which it is desired to MAP .
Another point that bothers me a bit is to have a CMOS sensor APS-C 24Mpix format. 24Mpix is good but it's heavy and it creates a little more noise in low light. I also advise not to go beyond ISO 3200 which is really the extreme acceptable limit for pictures not too noisy (using a lens that has an opening to 1.8)
I also regret that there is no supplied lens hood with the lens. It really seems to me indispensable. You can find one for 18-55 here This allows you not only protect the lens, but also to avoid stray rays into the lens.
Burst mode skates a little when you shoot in RAW and after nine pictures it saturates. Blame the 24Mpix and as surely the EXPEED processor 3. Maybe it has improved the D3300 and 4 EXPEED processor.
In sum good camera for amateur, but if you like the photo and if we really put you quickly feel limited. Rather than investing in a new case I still prefer investing in new optical like 55-300 f / 4.5-5.6 and 35mm f / 1.8 and soon the Tamron 90mm f / 2.8VC USD.
Photo Reflex requires a real investment, the mere fact of owning a DSLR does not make you a photographer. Learn the basics of photo (tutorial on the internet works) and push the topics that interest you most. Get out as fast as possible to the auto mode and switch to aperture priority (A), which meets 90% of requirements.
Also do not use the camera in RAW mode you can then work on Lightroom, Capture NX2 or the new cature NX-D (which unfortunately no longer has the U-Points). The RAW is really the solution to make up the sub-exhibitions, etc. skies Cramer JPEG is a bit "soft" for my taste you can tweak contrast, exposure, color saturation to your liking.