I am hoping to buy a new Syil mill in the next 2 to 3 months. My query was which would be the better machine to go with: an X4 Plus or X5 Plus. I will need cooland, 4th axis, def toolchanger (why I am waiting for a few months)

Can anyone privide some advice on which option to go for?

It will me machining aluminum mostly 6082 T6.

Also do these machines have any maintenance issues/problems?