I wouldn't enjoy a class that made you buy expensive rulers, patterns, etc. I want to know the basic techniques and do my own thing.
I have only purchased 1 pattern and was glad I did. This rooster is an Ann Shaw pattern and she does a good job explaining.
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I started with a Judy Niemeyer leaf and enjoyed it. didn't mind the cutting. then took a Carol Doak class and that book required cutting ahead of time but I did that at home. I enjoyed that too. I would do both of them again. But, I have no deadlines and I quilt for my own pleasure. both of them are ready for quilting, which I will get to.

I tried it recently and liked it but......I'm not a very patient person. Paper piecing is a bit slow and I like to zoom. I found a good compromise for me was to put some paper pieced elements into a simple quilt like the one below.

I've also had success making just one copy of a paper pieced block and turning it into a yard flag or a hanging for the front door.

I'm just not patient enough to make 20-30 blocks!

I printed patterns onto some onionskin paper I had in the house.

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I never precut the pieces for paper piecing. Like others, I think it's a waste of time. I rather like paper piecing and will hopefully start another paper pieced project in the next few months.

My 1st paper piecing project was Jinny Beyer's Crystal Star. Fell in love with paper piecing after that. Have only made 1 other paper piecing project but love it just the same.

My pp'ing
 

Love it. For Change of pace. Some of my favorites

What a timely topic! I just bought Peggy Martin's class on Craftsy and am ready to get started.
I have all of Carol Doak's books but I just couldn't get the hang of it. I even took a class with her.Carol is an excellent teacher. It was me. I just couldn't wrap my brain around it! But now things are starting to click. So glad I kept Carol's books. And this other teacher is great so far!
What is so nice about PP is the precision you can get. I've always wanted to do a New York Beauty (my home state) which is hard to do any other way that I know of.

I love paper piecing, unfortunately I haven't figured out how to post pics.

I have only made one table runner that was Paper Pieced. It was not so bad.

I started PP'ing a month ago and I started with a simple pattern. I learned the technique from YouTube,which has tons of videos on the subject. At first, I was wasting fabric but I was only making a few blocks for a pieced quilt so I wasn't concerned. Now, I know what I'm doing and just grab pieces from my scrap bag. I never got in the habit of pre-cutting but I would likely not do that anyway now that I know how to do it efficiently. So, I've made just blocks so far. I have a whole PP quilt project I'll be doing this year so we'll see how it goes. I use cheap copy paper for my foundation paper. And, there are a lot of PP patterns free on the net so that helps.