With the exception of one (asclepias), all of the seedlings that I started indoors this spring have transplanted well to the outdoors. I am especially excited about all the perennials that I started indoors. Each spring when some of the perennials from the year past don't return, I buy a few new perennials to fill in the gaps. It isn't always easy though to find some of the plants I am interested in, but the perennial seed selection from Earth's General Store is great, so I plan to shift over to home started perennial seedlings to increase the variety of plants that I can grow. The other great benefit of starting seedlings is that it is MUCH cheaper than buying the established plant!
Of the culinary herbs that I started indoors, the sage (above picture) has taken off the most!
I planted the hyssop seedlings (above picture) in a spot where the perennial beside it didn't look like it was going to return this year. It did though, so the hyssop is in a bit of a tight spot, but it is growing well.