Ah, shame. Still not a bad price
They seem to have increased their price to £189 now, just as I went to order! Gah!
Works with the FamilyFixOne base according to Maxi-Cosi, but was "designed" specifically for the 3WayFix base. (This is what they told me when I asked on Twitter.) https://twitter.com/MaxiCosiUK/status/1280085117206224896?s=19
I think 2 way fix base only
Ordered a travel system from them, excellent price/delivery