The taxes, too many laws, too much treating its residents like children and not allowing them the rights other states residents have . Not too much I hate about it, just a few big ones.
Pretty much the same here... Taxes are top of the list... Then some of the laws that make it almost a police state... Then there's trying to drive into Boston (I avoid it if at all possible)... I despise taking public transit, so I don't go into Boston unless I have no choice (under 20 times in the past 14 years)... Of course, there's also the M*******s that run all over the place... Visited the Brunswick/Freeport, Maine area in July... MUCH nicer people, so much more relaxed than most places in MA too... I find that's pretty common once you get a little distance between the MA boarder and states to the north... One of the reasons I actually want to move in that direction.