Future house projects: front door and kitchen floor

My front door originally had a large glass panel, which someone boarded over on both sides and painted. Over the last couple of years the door has started sticking in the frame in hot weather, and there was a crack developing where the added board was attached to the door. I had someone sand down the door and patch the crack, but they advised me the door is nearing the end of its life.

( The door I want is... )

Have you replaced a front door? Happy to hear opinions about this!

The other project I've been contemplating since I first moved in is a bamboo kitchen floor. I haven't done much research yet, and I'm concerned about off-gassing. The current floor is black linoleum (well, vinyl) with white swirls in it. It continues down the first half of the steps to the basement, where the sun shines through the back door, and it's cracked there. That's also my client entrance, so it would be nice for that to look better.

Anyone have thoughts or experiences about bamboo floors, and other flooring options?