Going to pre-empt the techno geeks/negative Nancies here: yes, it's not sharp like a Zeiss lens, and the technical quality of anything in a Lego built camera is poor. That said, let's move on....personally, I think this is brilliant!
An Instax Lego TLR? I could have used this post two weeks ago, before Christmas when everyone was asking me what I wanted and I said "I don't know... how about socks?".