1. Yes. 2. YES!!!!!
The only reason I can breastfeed today is because of the help of a good LC. We had a similar experience to hollowmac with the LCs in the hospital- they were super UNhelpful, and I felt as though they were pushy and made the baby mad. Really stressful more than very helpful. However, we literally got to the point where we could not get the baby to latch anymore after a few days of tongue tie problems, and he wasn't eating so we had to supplement with formula. Once his tongue got snipped, we saw an LC that a friend recommended, and she was GREAT! We went from not even able to get him near the boob without him screaming his head off and refusing to feed at home to him feeding peacefully within an hour! Worth the money times 10. We went back weeks later for a refresher once more of our other issues settled down. Try to get a recommendation from a friend or look at reviews if you can- some are great, some really aren't.