I didn't have blue Loctite available at the time, but the bike is due for the first service next week, so I'll get it checked over and done then.
Since my Birdy has a Rohloff, I'm not really short of gears to choose. But, I've had a couple of 'roadies' shout "get out of the saddle" as they've left me in their wakes on the steepest inclines. To be honest, I can't remember if I've ever managed to do that, but that was 40-plus years ago.
So far, apart from the price, the most annoying thing with the Birdy is the number of times I've been asked "Is that one of those new electric bikes?"