Assuming you choose the right carrier (one that has solid coverage where you need coverage), Samsung phones work well. If you choose a carrier that has no signal where you need signal, no phone is going to work well. And those are the reports you're seeing - "My Samsung phone stinks, I only get 1 bar and drop calls." Sure, if the nearest tower is 10 miles away and there are 3 large hills between you and the tower, and your house has aluminum siding. Take the same phone, on the same carrier, to the tower, ans watch the signal go to 5 bars and no problem.
People choose the carrier by many things - price, amount of data, which phones they offer - but very few people choose the carrier by checking that carrier's signal where they need coverage (and since a signal hole can range from inches to miles, the fact that the carrier has a good signal in the street in front of your office building isn't good enough - check it at your desk) - which, since it's primarily a phone - should be the first consideration.
The Note series has pretty decent receivers. I'm about 5 miles from the tower I connect to and I get a strong (-88dbm) signal. It could be better, but anything over about -103 is fine. (And since the scale is logarithmic, that's about a 32 times strength difference - so the signal could be 32 times weaker and I could still make calls.)