Hesitant at first, after watching various videos of people who have and have used these tools, and speaking to other people, it was a no-brainer to go with this kit specifically for my BMW R1250GS. The transaction was seamless, and i'm very happy with the product and its quality.
my Nav VI battery is from 2018. Now that not in production, very hard to find. But, Sierra had it and got it to me promptly after order. Product is exactly as described and Sierra is the best!