Can't help with any info on the XE series of H&H kits, but I own an XI series 6'6" 4pc 2wt that I bought assembled by H&H.
I really like this rod - it's become my favorite brookie stream rod. It's capable of throwing small streamers surprisingly well.
Bought this on one of H&H's sales. It was $129, and included a free H&H line - I chose the WF2F Hi Floater, and it works great with the rod. Throwing dries, dry dropper rigs, and small streamers is a piece of cake, but wind can make things tougher. For 20' wide mountain brookie streams, it's perfect for me. This rod throws a 4wt line pretty well too, but I usually just use the 2wt line. It easily throws 30 to 40' casts if needed.
This rod packs down to a very small package, but you'll likely have to make a tube for it. It came with a rod sock only.
Finding a reel light enough for the downlocking reel seat that'll balance the rod is another issue. I use a TFO BVK "0" reel on it (2.1 oz) that balances perfectly, and matches the color of the blank. This combo feels almost weightless, but it easily has the backbone to handle larger fish. A 14" trout would be easily handled with this rig.
A 6'6" rod has turned out to be a good compromise for tight, brushy streams, and more open brookie streams. If the water you normally fish is more open, a longer rod would be a better choice. I own 6', 6'6", 7', and 7'6" rods to choose from when fishing mountain streams, but the 6'6" has been a good compromise for me if I don't know what I'll run into.
Of course, YMMV.