I started with the tent version of the Hexamid Solo Plus, and loved it. However, for me, I found that I didn't like the amount of water & mud that the mesh floor wold pick up when it rained. I found that by setting it up in a grassy area when expecting rain helped decrease this a little, but in the end, it was just a bit more than I personally wanted to deal with.
So, I sold it and picked up the Solo plus tarp and the new hexanet for it. I haven't had a chance to use it on the trail yet, but have tested it 4 nights so far and really like this option. I prefer the solid cuben floor as opposed to the mesh floor, and I love that I can set up one or the other, or both if need be.
However, don't think that I am knocking the tent version... as I said, it was a personal choice for me. There are pro's & con's to each set-up. The obvious pro to the tent version is less fiddle & more interior room. The obvious pro with the tarp & net combo is more versatility and (IMO) a cleaner option when in wet situations. Of course there are others too, but these are the ones that stand out to me.
As for weight, both, my tent version & now the tarp & net version are with an oz of each other. (But to be fair, my tent was seam sealed with SilNet first, and then I also taped the inside. My tarp is only taped. So, the tent would have been a bit lighter...)
Anyway, I gotta say that I love the Hexamids. They are priced right (comparing to other cuben shelters), are obviously lightweight, and have been proven to be reliable shelters by many other users. Not saying it's the best out there... it just has a lot of features that I really like. And as far as setting it up, I find that it is quite easy. Check out this video of me setting my the tarp & net tent:
Setting Up My Hexamid Tarp & Hexanet