I am extremely frustrated with the warranty from the Boos customer support. I have read on this site numerous reviews of people getting replacement boards, but I have been recently told by Boos, that this only applies if you've had the board for less than 1 year.
I have a 15x20 end grain walnut board (approximately $400). I have followed all the appropriate methods for care- boos mystery oil, board creme, never submerging it. It has also been in my home which is kept at 40-45% relative humidity at all times.
After approximately 18-24 months, the board has split between 2 of the end grains. I contacted customer service and because it's outside of a year old, AND I dont have a receipt (Who keeps the receipts for a cutting board?) they are completely unwilling to help me. Considering the amount of money spent on this board, I find it absolutely ridiculous the lack of support from them. If I knew the board was going to last 2 years max, I would have just bought 20 inexpensive cutting boards and tossed them out once a month.
Based on this experience, and many others I've read about, I wouldn't recommend this board.