My favourite cage by far for dwarf hammies is the Ferplast Mini Duna - I haven't had a Lux yet but I'm itching to get one so I'll let you know. I've tried pretty much every "dwarf" cage on the market and the Duna gets my 100% seal of aprooval
And yesterday I saw them on a website for £18 which is £10 less than I paid for mine, now I just have to remember which website???