I'm an EZY boy, and like most crew, I love it, EXCEPT for the rosters. Flying 4 sectors a day (ie about 10-12 hours flying) is really hard work. However relaxed style, good promotion prospects, pretty good money, fantastic crew all make up for that. Unfortunatley while Ryanair are about to flog their crew to death, easy will have to follow suit to offer competative fares.
About the whole humour and joking with pax thing. Yes, some crew are really funny, some are REALLLY NOT funny, and most of us are in between. No one should mess about in the demo, its company SOPs to read it as it is written. However, having a joke with the pax is what gives us an image of relaxed and approachable crew, as apposed to being stuck up. If some pax don't find it funny, you can't please everyone, but it is worth it in the end for the relaxed atmosphere onboard.