I've just had my 1st consultation with an orthodontist. I went in feeling really optimistic but now feel completely deflated and wondering if i'm doing the right thing by embarking with braces

The appointment just didn't go how i imagined and i'm not sure if i just expected too much so i'd really appreciate some opinions from people who have "been there & done that".....
Bearing in mind this was my 1st apt. the Ortho didn't even introduce himself just told me to sit down and asked what i wanted. He started looking in my mouth and calling out various numbers etc to the dental nurse but didn't once explain what he was measuring/recording etc
When he took picture of my teeth he was really rough when putting in the plastic clamps to hold open my lips in my mouth - my mouth and lips were really sore afterwards - is this normal?
He then started saying that i could have 4 teeth extracted in order to get the end result of a "flat profile" or i could leave the teeth in and "have the teeth slightly more prominent with a fuller smile" - not really sure what he mean by either of these and by way of explanation he said that if at the end of the treatment i felt me teeth"looked like a horse we could remove the 4 teeth and extend the treatment to close the gaps".
I have to go back next week to see what options are available to me, costs etc.
I also had x-rays.
Plus, his own teeth were appalling - so crooked and overcrowded - not the best advertisement for an Orthodontist!!!
I'm really not filled with confidence by this guy. Would i be advised to seek a second opinion?
Any advice would be gratefully received - sorry for the long post
