Would probably have to get a cheap sub to fill out 40-100hz
Probably wouldn't use them to full potential Ugly as sin
A little larger
The photo appears to be the older finish, so that won't be the same today. To be honest, with the grill on they look pretty much like any other speaker. Jeff might offer other finishes though, so it might be worthwhile to contact him and see if that's a possibility.
If you take yourself too seriously expect me to do the exact opposite
The Single 8's were run with a pair of subs actually; S2's. The Sierra's were run full range at the owners request.
Definitely would have requested the Sierras to be played with a sub or 2 of which they're meant to be played with. Went with the flow and lumped them in with the other speakers in its specs. category (less high efficiency compared to JTR, Yorkville, Seaton, SEOS). In hindsight, I commented to Andrew during lunch that they should have played with a sub.
To clarify further, when I state a sub should have been used with the Sierras, this is based on the large size of Andrew's room, the sound treatments in the room, the Denon 4311 used to solely drive the speaker (without an external amp) and the complexity of the music sweep. How the Sierras perform full range in a smaller space or under different environmental conditions may be a different story.