Reply to VCI-400 & Kontrol X1

Hey guys.

I've currently bought a standard VCI-400, I'm fully aware it's a fully customizable piece of kit, however, I'm wanting to purchase a Kontrol X1.

I love the effective functionality the X1 provides, I played around with my mate's one time.

I've never used a VCI-400 & am fully excited to get my hands dirty.

My questions now are...

Is it worth getting the X1?
Using the VCI-400 alongside the X1... Opinions & thoughts?

Thanks in advance people!