This thing is great! Easy to assemble/disassemble/reassemble and fits a lot while looking pretty good. It is very heavy when there are books on it & it is a serious tipping hazard so look to anchor it if you have small children or pets. 

Otherwise really happy with this - we've had it for about 3-4 years and it's held up well. Although it's just a bookshelf afterall so idk how much wear & tear can realistically be involved BUT we did move with it (see disassembly/reassembly comment) and had no problems.