Let's get back to the rebreather.
Since you asked, here`s my opinion regarding this rebreather.
To me Mike Young of Kiss is a great visionary and he comes up with absolutely stunning ideas.
Like the sidekick which had a revolutionary concept with the scrubber surrounded by the counterlung, the sidewinder shows some very interesting design traits too..
Mike Young is, again in my opinion, a great inventor.
On the other hand, this is also my humble opinion, the build quality of the units and the choice of materials is absolutely mediocre.
The quality of some of the parts is comparable with Home Depot hardware and not in any way adequate for a high end (and highly priced) life-support machine.
I'm very familiar with the sidekick and some of the engineering faux-pas and I'm also somewhat familier with the sidewinder since I took a class in the corresponding backmount unit.
During my class the unit partially flooded due to non existant deburring of a part in the factory and obviously non-existant quality control.
Several of my friends use(d) Kiss sidekick units which are notorious (at least the units shipped in the first 2 years) for having semi-flooded and failing O2 sensors and counterlung issues.
Once again, the concept is great, the choice of materials and some of the practical design is absolutely not.
I would stay away from anything other than a Kiss Classic which was/is an awesome unit.
If someone absolutely feels the urge to get a rebreather, or in this case a sidemount version, I do highly recommend to get something that is designed and built properly.
I would absolutely want to look elsewhere, for example towards the SF2.
Next as to the trend of people getting pushed into a sidemount rebreather in the first place, that's just something I can't agree with at all either.
Having a sidemount rebreather totally restricts the possible use of bailout, even with a semi backmount unit like the sidewinder.
Backmount would work for 99% of the users and would benefit them much more in the long run.