Need Advice For New Mixer

 Hi All, first time poster,

Have been having a seriously hard time deciding which mixer to buy, really hope you guys could give some insight.

I have to choose between a DJM-250MK2 untouched or a second hand serviced and cleaned DJM-400. I really like the seperate filters and XLR outs on the 250, but the 400 has more effects and is more simillar to the layout of the bigger mix.

Does anyone know of any serious sound quality issues with either? or of any serious drawbacks?

I've been mixing vinyl around 18 months and the crossfader on the mixer im using has never worked, so getting impatient haha

Thanks so much in advance for any advice