It depends, what are you going to be using the tires for? If you're going to use them for dirt, no they aren't good. If you are going to be usin them for trackdays or very spirited canyon runs (20+ posted corner speed) then probably not the greatest tire on the market. If it's anything in between, it should be fine.
How you feel about your tires is reflected in you as a rider. People will go faster or slower depending on how much confidence they have in their tires. If you, personally, don't feel confident in the tire, than change it. But don't change it because someone else doesn't like it. I say, make your own opinion.