I think the episode started off well enough, but it declined rapidly at the end. Dont hate on me, let me explain.
Ricks group comming and saving the day was nice, I wasnt expecting it. Also, Daryl with that crossbow snatch was money.
Regarding Merle, Rick couldnt let him back into the goup. He had been with them for a matter of hours and he was already causing so much drama that Rick had to pistol whip him to shut him up. Notice how things calmed down when Merle stopped talking? Merle lost this hand because of Rick, I'd be talking cr@p too if I were him. Letting Daryl go with his brother was the right call because Merle would cause more harm than good.
I was really looking forwar to seeing Rick accepting the new group in until he lost his mind. I can understand why he would initially say no. He is already responsible for so much, that adding new people to the group just places more stress on him. He's at the breaking point, so placing more of a burden on him will make him fall to pieces... like he's currently doing. Get the man some sleep!
1st major annoyance - Andrea: Who does she think she is? She's been in the town, what? a week? and is already calling the shots? I understand its character development but it doesnt make sense to me. I guess its trying to say that the Woodberry people are all helpless without an authoritorian leader, but you would think at least one of the woodberry people would say "Why should we listen to you?"
2nd major annoyance - Michonne: TALK D*MMIT!!! xd She could have solved so many problems if she just spoke. Instead, she is being difficult and unhelpfull and I can't understand why.
3rd major annoyance - The scene with Lori's ghost: overkill. They almost lost me at that point. Having Rick Hallucinate the phone ringing was well done and was enough to let the audience know he is losing it. Also, the scene where the baby was crying while rick was holding her was well done because it conveyed the sense that he is overwhelmed, and stressed. However, when they made him "see" Lori's ghost, he went from just losing himself to full on Post traumatic stress disorder, which is too far in my opinion.
I know I have been complaing alot, but there were also some really good parts. Glen's badassadry. When that Zombia came at him, he said "Nope" then proceded to show his frustration with the bottom of his shoe. Another thing I really liked was when they stopped after the assault on woodberry, you would see walkers in the background just lurking, which showed me at this point that things have evolved from just surviving against the walkers. I thought this episode could have been better even though I thought it was still a decent episode. Id give it a 7/10