Product review (4 stars): Nice product, but a few gotchas
This is a solid product as works well as described. I did, however, have a few issues:
1 - While the product description indicates it can vent the exhaust to the rear rectangular slot, it does not indicate that to use this feature you need to buy the optional kit to seal the top 6" opening and connect the rear vent sleeve.  Because this product was relatively new, it took a while before ADCO (the parts and service company for KOBE) could get the product from Kobe (luckily they had it in the US and did not need to shop from China). Assume this issue will work itself out over time. NOTE - both the Kobe and ADCO customer service folks were very helpful and supportive.
2. The LED lights are great but mostly light up the front part of my range top (and not much of the rear).  Would be nice if the lights swiveled some to better distribute the light.
3. The electrical connection was a bit wonky.  The circular knockout on the back did not properly align with the built-in junction box, so a little on-the-spot-mods were needed. Not a huge issue, but a bit frustrating.  Also, there's no way to use a Romex wire clamp (NM/SE) - simply cannot get your hands in the small junction box to tighten the screws.

Overall, I'd buy this again, as it exactly fit my needs (~6" tall/30" wide, sufficient CFM, stainless, LED lights, rear 3.25" x 10" vent, reasonable price. I just hope Kobe works out a few of these design kinks.