I think they are really close with OVI and hence removing all the competition. You can use OVI and with some luck it will be done right and maybe even sent on time.
Photobox is very low end so not used them for ages, but they removed a very decent French lab just months ago and I'm p***ed about it. OVI could only dream about that level of products.
Of course you could and should self-fulfill meaning printing yourself or passing the order to the company of your choice. Sadly there are those looney Zenfolio fess.
I have so many reasons to leave and I will. Least of them are nearly-zero updates over quite a number of years and terrible mobile interface.
Their french law firm is doing a bit of a clean up for me now so it can limp on for a little while, but the end is near. I'll do something in WP and once happy will initiate the domain reassignment. I'm generally quite loyal customer if things are at least mostly OK but here its not even that any more.
Don't be surprised to see price rises on renewal as they now list my current rate as first year promo, which was initially said to be held indefinitely, until canceled or upgraded.