I asked the garage I am taking it to about hydro and he told me I may not like it? Any particular reason?...
You'd have to ask the shop that question. But I'd bet it had to do with what the others are saying as well. That it's hyper-sensitive compared to a standard manual brake setup. Or in the case of Broncos, even the vacuum brakes, which due to the small booster no doubt, were not that big of an improvement.
Well, I personally think that the original factory boosters had some good boost, where the aftermarket ones we have available to us now (even through us) are not offering quite as much boost as originals. Yes, you can feel the improvement, but not as much as with hyrdro-boost from all reports.
While I'm on the hydro bandwagon then, do you know for sure that your current setup is optimized? Maybe you're in need of some boost, but maybe you're not getting the full potential of the manual ones yet.
A lot of that would depend on which brakes were installed, how well they were installed, and what master cylinder was used. And ultimately, what tire size as someone said.
If all stock-ish, then you're probably correct in that they're about as good as they're going to be without assistance. But if any of the installation was sub-correct, you might be fighting some unnecessary battles.
Then again, we should ask what size tire you have?

What year Bronco, and if lifted, how much?
Anything 33" and above can definitely benefit from some boostage.
Good luck. And welcome to classicbroncos too!
Paul