Shows you partially agree, acknowledging one good point but not everything. Your ideas are a bit unconventional, but you're creative, I'll give you that.
Pro Tip 2/3
Reluctant Concession
Implies giving credit begrudgingly or with a little resistance. I'm not a fan of his attitude, but he's a hard worker, I'll give you that.
Pro Tip 3/3
Colloquial Tone
Best used in casual conversation rather than formal settings. She can be tough to deal with, but she's fair, I'll give you that.