Ah, you have hit upon one of my pet hates.
The short version is that KLM's "Europe Select" is awful and offers no value for money. Main reason: lousy, cramped, narrow seats in a 3-3 configuration, which means you can get stuck in a middle seat. When that happens, even reading a newspaper becomes difficult, let alone working on a laptop in a modicum of privacy. Seat pitch is no better than in economy (they claim to give you an inch or two extra, but it's not enough to make a difference). And there's something about the new seat design that gives me a pain in the neck when I try to sleep.
They do still give you a newspaper in "Europe Select," but to have any choice you need to be in the first rows. If you're in row 6, your favorite newspapers will have been taken. The food and drinks service is better than in Y, but I don't really care too much on short intra-Europe flights. It's never been very good, and I prefer to have real meal when I arrive. Other supposed benefits of Europe Select are the priority boarding lines, but they seldom work.
Since KLM introduced Europe Select, I have been avoiding them as much as possible in order to fly with airlines that do offer a real C class with a comfortable, big seat and some privacy. Add to that that KLM has been using more and more their Cityhopper subsidiary with F70's (which do not even have Europe Select, only Y) even to destinations like FRa, the conclusion must be that KLM has given up on the premium business market.
However, you may be in luck!
Due to scheduling issues I recently had to fly KLM to LHR
and back, and the 737-900 I was in did have the old 2-3 configuration with the better seats. What's even better, some of the morning flights are operated by 767-300's which have the long-haul (old) World Business Class seats. They are woefully inadequate for long-haul for but short-haul to LHR
, they're the best any airline offers.