I think adding a rotator would significantly add the amount of channels I get. But it seems like the more I read the majority of folks out there either are disappointed in their's or feel like even though it isn't quality it works enough.
Before I spend the money and time on the roof any suggestions?

It depends basically on how far "angular" apart are the transmitters and the antenna's coverage pattern. In general for stations around 90 degrees apart a rotator is requiered or like me in Havana, I was the rotator, lol. For instance back in Havana , the 2 meter reflector had a very small aperture and despite the Florida peninsula being very narrow (Ft Myers for evens and Miami for odds channels) therefore the angular separation from Havana between both cities was less than 30 degrees you still requiered to go out and rotate the whole antenna. This is a parabolic reflector and as such they are very directional.

As per rotor suggestions , I have never bought/used any but as per Channel Master's antennas I have tried , you can not go wrong with them. I am sure other members will give valuable info.

Here is what I think you should do, it requires 2 people and some walkie-talkie or FRS style radios and a marker.  One person is in the house by the TV, the other on the roof.  Mark a line on the antenna mount where it rotates so that your line is on both the rotating and fixed parts, so you know the starting position. 

Person inside house runs a scan of the channels, and writes down any channel that comes in clear ( without a lot of static or snow ).  Skip the ones that are barely acceptable.    Person on roof rotates the antenna about 10 degrees, repeat the scan, write down any NEW channels that come in clear, draw a line between so that you know when the antenna position was changed. 
Repeat this process until you are back in the starting position.

Now you will probably have some lines where there are no channels between lines, and that is okay.  If all the channels are within one or two adjacent positions then a rotor isn't going to help.  If there are channels all over the place, then a rotor will help. 

I have the Channelmaster 9321 rotator. It works fine. Its not as good as the ones the ham radio guys use for turning their big antennas, but it stays put in the wind and is easy to use. Just don't overload it and you should be fine.

I understand there's a real problem with some TVs and rotors, because you can't just add channels when looking in a direction different from where you were pointed when you did the scan. You'll want to work that out before you buy a rotor.

I have two sets with very different ways of adding channels manually. The Sony Bravia is the most challenging, but it is possible by manually tuning and hitting "SAVE" when you find something.

It really depends on where you live. What general area are you in?

If you're in the GTA, you probably can get away without a rotor and a simple 4-bay reflector antenna to grab Toronto and Buffalo with Hamilton.

Easier if you're east of the GTA, a little trickier if you're in the west end, but do-able. It just requires careful aiming.

If you're in Niagara, you'll most likely need a rotor as Toronto and Buffalo are pretty opposite to each other, but you can still probably get away with one of those disc-shaped omnidirectional antennas, no rotor needed.