Hi all,
I am a little confused: I sent a transaction today and added 0.0003 BTC as suggested by the BTC Core client.
After 2.5 hours, I still see only 2 out of 6 confirmations... I this normal these days?
It's normal. Solving a block usually takes every 10 minutes however it can take MUCH longer or much shorter. It's basically all about luck. You just happened to send a transaction when it's taking longer than average to solve a block.
edit: typo