I love my el companero. I got mine off of ebay, and the previous owner shrunk it a bit so I had to trim the foam that goes into the insert. But like everyone else has said, it’s very grippy, and very secure-feeling for a bareback pad.
Additionally, I like the design better than the Parelli-type suede pads, because the el companero keeps me clean head to toe, whereas the Parelli pads are too short to protect my calves. Sometimes when I’m riding bareback I’m just in shorts, and it’s nice not to have a layer of grime on my lower leg when I’m done.
I also have a treeless saddle, so i have a really nice HAF pad 9which is a lot like the skito pads, grandeur pads etc.) and I tend to use my el companero with the HAF pad underneath. Super comfy for me and my horse and somedays I prefer it to using the treeless saddle.
I also like that it’s machine washable (in COLD water!), that it can get rained on or snowed on no problem.
I took the two long leather straps (latigos) off the back as they annoyed my horse and served no purpose as far as I could tell. And DO NOT use the loop they provide for mounting from the ground, it can really strain your horse’s back since there is no tree. You have to use a mounting block of some kind to get on.
But I have the “english toast” and it’s a much more reasonable color than the purple. 
I bought a best friends pad first, and it is nice, but not even in the same class as the el companero.
Also, Wraper2-- I thought bareback pads with stirrups were a bad idea because of the way they place strain on your horse’s back in one narrow band…the little joe BB pad looks like it does this, and also looks like it doesn’t have a tree. From what I have heard, with pads like that, it’s not a good idea to use the stirrups, it’s better to take them off and use the pads without the stirrups.