Pros: Consistent height, durable, easy to use
Cons: One size does not fit all
I tested out the 3 1/4" and 2 3/4 bugle tees. I started my test by teeing up some balls using my normal tee height and comparing to the bugle tees. For me the 3 1/4" tee was about 1/8" higher than I normally tee my driver. The 2 3/4" tee was too short to be of any use to me - too short for my driver and too high for my fairway woods.
I hit about 50 balls at the range with the driver. True to their claims, the bugle tee was completely unharmed. I really like this tee for range use as its quick to setup and takes the guess work out of teeing the ball up. Anything that helps make your practice more consistent gets a thumbs up in my book. Next I took it out on the course for 18. Not sure if was the due to the bugle tee but I had a great driving day. No problems using the tee and it still looks brand new.
The main pro of the product, consistent tee height, is also the main con. In a perfect world I'd like the ability to customize the tee to my preferred height. I think this would be easy to do - If it was up to me I'd shorten the top part of the tee by 1/4" or so and extend the portion that goes into the ground. I'd then include a rubber o-ring that you could move up and down the tee to adjust the height. That way I could get my preferred 3 1/8" tee height and still get the benefits of the bugle tee. Overall I think its a good product that could be great with a couple of tweaks.