What are Your Thoughts on "Game Plus" Modes? (Witcher 3 NG+ DLC)

CD Projekt Red announced via twitter that the last free DLC for Witcher 3 will be a "New Game Plus" (NG+) mode that you can access once finishing the game. Basically, it allows you to replay the game with your already leveled up character. Here's some details:

Regarding some of the questions that appeared since yesterday, here are the answers.

Enemies will be stronger, obviously.

What carries over?
Player experience (if you're below level 30 when finishing the vanilla game, you will be bumped to level 30 for the start of NG+), items (excluding: quest items, books & letters, Gwent cards, usable items, trophies), money and alchemy recipes.

When starting New Game Plus you can select any difficulty level.

You can obtain the Death Match achievement when playing the NG+ mode.

What's the starting level of the character when beginning NG+?
The same that you had when finishing the game, if above 30, otherwise you start at level 30. You also get a free Clearing Potion at the start so you can reset your skills and try a different build.

I'm pretty excited about this because it allows you to replay the game, making new decisions and trying out different skills without requiring you to muck around with early leveling.

What are you thoughts on this? Would you like it if more developers released game plus modes?