Unipack / Create / Sports Direct singlespeed track bikes?

i brought one of these over a year ago as i didnt want my giant tcr to get knicked popping to the shops or leaving it outside work/pubs.. i have ridden it pretty much every week about 65 miles a week and nothing has gone wrong with it, replaced the saddle thats about it.. my general opinion is:

1. its realllly realllly heavy.
   
2. parts are cheap but pretty sturdy.
   
3. wheels are crap, tubes are constantly leaking.
   
4. makes a racket when you freewheel.
   
5. front wheel nuts magically unscrew.
   
6. angles are a little funny.
   
   

but overall its served its purpose of not having my nice bike stolen, got me to work, ive been building its replacement for a while now but untill then ill keep riding it.