Reply to RMP-2,5 Alpha vs. NDX-800 vs. CDJ 400

cheers guys,

this is my first post here so I want to say Hi to all of you!
I have a small Dj project with my friend, we play some sort of electro house, dubstep, drumstep and sutff on small venues in bars and small clubs around, using traktor and standart midi controllers, such as digital jockeys and X1s etc. but since our project began to grow, we have to move to another level. All bigger clubs around are equipped with cd/mp3 players, mostly pioneer CDJ ones, so we decided do upgrade our stuff too and buy some of them as well. I am currently interested in tree particular ones. My requirements were some sort of qality of course and also possibility to use them as midi controllers for traktor as well.

My favourites are:
Reloop RMP-2,5 Alpha
Numark NDX-800
Pioneer CDJ-400

Do you have any experience with theese players?
Thank you for any of your answers!