I love Coral Bells (Heuchera). They are very hardy, tough plants that not only survive but thrive on very little care. They also attract butterflied and hummingbirds.
They are drought tolerant when established, needing a deep watering only once a week or so during prolonged dry spells, and will go longer, if necessary. I've had Heucheras that looked all dried up and crispy, only to revive when given water.
Generally, the dark green and purple-leaved varieties are more sun tolerant, preferring full sun. The chartreuse, golden, and silver leaved varieties do better in part sun. In parts of the midwest, SW, and SE, where it's very hot, I think they would all need some sun protection, but Minnesota is pretty far north, I think the general guidelines I gave will work. I have some Key Lime Pie on the north side of the house, where they are in shade until about 1 or 2 pm . . . it's not the greatest place for them, I think they'd be happier with several hours of morning sun instead, but they are growing and blooming, though remaining smaller than their purple-leaved neighbors.
I think you will enjoy your new Coral Bells--they are wonderful little plants!
Barb and the Two Furry Speedbumps