What other bt wireless headphones do you have or have tested?  Also, since it could be used wired and wireless, can you please provide a quick summary on a sound difference between each?

Was this the original S1 you reviewed or the revised S1+? I ask because the S1+ are supposed to have larger ear cups.

I have listened to the Beats and the Bose. Its hard to do a direct side by side comparison standing in Best Buy. I have a pair of on ear BT from SKECH $100 in the mall, they are OK. As to the wired vs wireless, I can tell little, if any difference. My reference headphone is my HD650's which I love. please note that I am very new to the Head-Fi world and would use my review/impressions accordingly.
 
I dove into this with HD650, Schiit Valhalla 2, Modi, and a Wyrd running from either a iphone or a Air. Love this setup, likely all I will ever need. Yet, it's a lot on the end table. I wanted a BT solution for Itunes over BT while working on the laptop or in the shop.
 
The S1's remain ok and as good as the signal from my Air or Iphone. Really what I am missing is comfort! To be fair, my hat size is 7&5/8 which will affect comport and fitment. Interesting about the S1+. I did not notice it on the Pendulumic site or when I ordered.
 
Would I order the S1+? Likely not. Will look for a different solution.