It will feel like some one is pushing on your teeth. The brackets stick out a bit from your teeth making it feel like you have a full mouth of metal, big lips and your bracket may rub against your lips feeling again like a metal file.
While some breeds may be more suitable than others for a beginner rider, there are always exceptions to the rule. Quarter Horses often make great beginner horses because of their even temperament, but some can be quite hot or energetic for a beginner.
As Gumby says. I'd personally advise you to get the best you can afford though. Beginners (in my opinion) should get adjustable tension pedals (there are a couple of makes that aren't) and the more you pay, the better they will work. The best are Shimano's XTR at about $150.oday was my first ride with clipless. I bought Shimano 520s for about $50. Read the reviews on the 520s they're great beginner pedals and then some. They also have the tension adjustment, so today being my first time I had them set almost to the lowest tension.