I think that, like many patterns, the fabric makes all the difference. Peggy had a video on her site about a year ago (it is gone now) - it was a fashion show of all her patterns. I had to take notes because i ddin't recognize what any of them were. She had changed patterns, blouses that had sleeves were made sleeveless, a jacket was turned into a dress, some patterns were shortened and altered in ways that made them look quite different.
I wish she had kept the video on her site because it was very useful. It also made me want to sew up about 20 of the patterns.
I have made her pants, at first I struggled with the sizing. I figured I was closer to a 16W but when that turned out to be huge. So I made the 16 normal size and altered the waist (which I always have to do) and got a really nice comfortable fit. In fact, one of the nicest pants I have made. Unfortunately, the fabric shrunk more with washing and the pants ended up too short to be wearable. I only wore them for casual and really should get round to making another pair or two. They had front pleats but there was very little fullness in the front of the pants, as so often happens with pleated pants.
I have also made her Classic Blouse #600 in a rayon batik and love it. I made it in a crisp cotton and hated it. It was not comfortable, the rayon one is great. Fabric makes such a difference.
I made the No Gap Wrap and loved it too. I made that in cotton and got great fit right out of the envelope with no alterations. But again, the fabric is important, it would have been much nicer in a soft drapey fabric like rayon or silk.
I keep meaning to make up more of her patterns, but just haven't had the time. Of the three I have tried, I have been happy with all.
A word of warning though, you can't assume you are the same size in different patterns. I cut the size that gives me the amount of ease I am comfortable with. So in the Classic Blouse, I cut size 6W and in the No Gap Wrap, I cut 5W. I know that I like 3-4" ease at the bust, so I choose the size according to that. Not the same size for each pattern, as you would think.
I do wish the sizing was more consistent, if you compare the patterns, you will see the chart varies from pattern to pattern. I dont' see why it can't be the same, but it isn't. You just have to be forewarned, I guess.
By the way, the last Threads showed Becky's Blouse made up in leather. You would never know it was that pattern if you went by the pattern picture or line drawings. They are deceptively simple. Julie