Personally, I wouldnt consider it a good investment. LLLL.com's are only now going up in price. Who knows how long you'd have to wait for .me's to start selling out. Hopefully you didnt pay more than regfee.
it would be considered a good TLD if the case is you could actually associate it with an abbreviation. If the abbreviated phrase is something that is highly searched for then you could say you're sitting on a gold mine. Try to search for abbreviations. Do a research on that. Let's hope you find a good one that is in a lucrative niche. Good luck!
It's a short domain name but other than that I don't see it be of any real value. I'd keep it though, you just never know
Seems a pretty poor choice except for the shortness. You should have asked before buying atleast, anyways it's too late.