Iluvatar is in Belgium(?) if I recall, so not supporting a completely different country's local industry and picking the best option from across the world makes perfect sense. It's what I do even from the UK. Having said that, I have really liked MVM's efforts to step up their CE game lately while also supporting cheaper releases! The Lull In The Sea (NagiAsu) set was especially notable as they clearly got involved right from the start; they weren't straight up copying a foreign release but contributing to the foreign release from the beginning. I have no idea why the shimmer effect was lost in the UK (a simple mistake?) but when that's literally the only complaint, it's a sign it was a pretty good set.
The main reason I like MVM is that they fly against the other companies and license a bunch of really quirky stuff, as well as stuff aimed at people often overlooked (like the entire female fan population most of the time). The UK market wouldn't be what it is today without them. And they listen, too; if people give feedback about what they do and don't like about the CEs, I really believe they'll improve.
R