Coming off a Kawasaki Concours 14. Would I be disappointing on a Wee? Want something a bit lighter. Used mainly for commuting.
I have both. As far as I'm concerned YES. But what is it you really like about your C14? What do you not like about it? What is it you hope to gain with the Wee?
You said weight and you will definitely be going to a lighter bike. You should also gain some in fuel mileage. You may like the more upright seating position of the Wee.
The wee also is quite light steering which is nice in traffic and on very twisty roads.
The wee is cheaper to run, tires last longer, maintenance is less expensive.
What will you give up?
Power. A lot of power.
The wee is 'busy' at highway speeds. Yes, I know, it will run 80 all day. I'll tell you though it doesn't have a heck of a lot left at those speeds. As you know a C14 does have a lot left. A 650 (at least mine) was pretty much done at 105. This summer I had my C14 showing an indicated 135 in fifth, still pulling hard with 2k left to redline, which is where I backed off.
You'll be going from a shaft to a chain with the extra fidgeting that's involved in that.
If it matters you would give up a stronger electrical system, important if you like to run a lot of farkles.
I also like the Connie's luggage. You can get luggage for a Strom, lots of it, but your C14 already has it.
Like most things the best bet is to have both. If it was really a choice between the two for me the Strom would be gone this evening without a second thought. I'd miss its dirt road ability, nothing else of significance.
Here shortly someone will come along and present a case for the other way of thinking.