has anybody used this before?how's it for mixing?thanks

i've used them a few times, there not bad. they dont have too many features such a looping, effects or key lock but they are solid and get the job done.

Ive used them for years (as well as 2000s, 2500s 2600s and 5000s)
get the job done-
1800 is nowhere near as good as the 2600f, as it doesnt have some more advanced features.

I like denon twins, and id take one over most other cd players

Stable pitch, nice bend buttons and fast disc loading- keep it serviced and it will go on forever.
the 1800 also has the platter stop/start mode which is useful.
No bullshit, gets the job done and is reliable.
Also quite cheap now