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.
Shown by 12 year old and adult in halter, pleasure, and trail. He is a good trail horse, low headed and rides slack rein, and will go thru brush and rocks and make trails. Rides is big ranch country. is very gentle and willing to do trail riding and pleasure riding safely. Good size for on and off and easy to throw a saddle on.