Hi, I'm new here and this is, in fact, my first post in this community. I put in an order for the Horizon a couple of weeks ago and it won't be ready until the end of November!
During a frustrating search for reviews on the Sierra-2s (I couldn't find any), I somehow stumbled upon an excellent review on YouTube. It helped convince me to order the Sierra 2s, so I recommend anyone looking for a good Sierra 2 review to check it out.
This link leads to an in-depth review of the Sierra-2 and whether it’s worth the extra money over the Sierra-1. It's a 2-hour podcast, but you can fast-forward to the 1:42:04 mark that starts the 12-minute review:
https://www.youtube.com/watch?v=Z1Uz9Z7O8vA
There is also a 5-minute discussion that justifies the expense of auditioning and buying the Sierra-2 at the 1:52:27 mark:
https://www.youtube.com/watch?v=2bCCTNFh2F0
Anyway, I thought I'd share these Sierra 2 reviews because I suspect others will have had a very hard time finding any as I did. I hope it helps in your decision of whether to purchase the Sierra 2.
Lawrence