Pros:

• Massive quantities of flowers for about 3 months
• Bees love the blooms
• The plant doesn't need any care to thrive
• We've transplanted a few of the seedlings. They're true to their parent in terms of color, but the parents seems like a double bloom and the children seem like single bloom
• If you want a hedge, this seems like a good option

Cons:

• Seeds! So many seeds. Each of its hundreds (thousands?) of flowers will produce 10+ seeds. They all don't germinate, but it's a numbers game. If you want to avoid pulling volunteers up you're best off pulling the seed pods off the plant before they open on their own

I pulled ~2 gallons of seed pods off a week prior to this picture. My wife dumped them in the compost, so no epic 5+ gallon photo 😭