Your NT defense:
X= 1 minor or majors
2♣ = ♣ + major
2♦ = ♦ + major
Please comment if your decision would change if
1. You were in second seat after the dealer opens 1N
2. Vulnerability was different (particularly if you were NV)
3. Form of scoring was imps instead of matchpoints
4. If 2♦ was natural
Benefits include:
Plus... it's free!