A DC14 is just a redesigned DC07, so they are pretty much similar. I find an 07 better to use, but I'm tall so these thigns always matter!
s and As said,s are great vacs to buy for sub £10 and fix and sell for £50-60. Got a DC07 that will be put up for sale tonight infact!
Just keep the pre motor filter washed every 5-6 months and change the post filter every year (a pad or hepa, both the same) and she should do you well.
I find they dont clean deep down, I think thats been done to death here now on various threads but for quick cleaning, and good tools they are hard to beat, especially here where they are so cheap!