You can't sleep on a Thistle
I own a 361 in a "light wind area" (Tennessee River). I have owned many boats and I think the B361 is the absolute best I have owned. Yes, my Thistle went to weather in light wind like a rocket, but I couldn't sleep on it.
The B361 sails better than any other "cruiser" I have sailed. I owned an S2 9.2A, for example, that didn't sail in light air at all. I have chartered many cruising boats and none have been as lively as the B361. I've sailed Hunters and Catalinas and never found one that performs as well as the Beneteau. Very nice boats with some features better than the Beneteau, but they didn't sail as well.
With the 140 genoa (designed sail) she performs beautifully as long as there is 3 to 4 knots of wind. Below that, it's time for the Yanmar.
And when the wind picks up, she sails like a laser. Going to weather in winds over 15 knots, I have to play the main traveler to keep her on her feet. Over 18, I put in the first reef in the main. (By the way, mine has a "classic" main with 4 full battens, not a furler). I also change out headsails to my 100 percent jib at that point if I am going to be sailing for any length of time. I've never found a big genoa that performs very well "roller reefed."
I don't know where you have read about the performance being mediocre. Compared to boat with a 7 foot fin keel and a carbon mast, I'm sure it might be, but for a boat that is comfortable to cruise, I don't think you will find a better performer in this size range.
Another good indicator of this is the assigned PHRF number. I don't have it in front of me to give you the specific number, but it is very low (like 115 or so)...meaning that it is fast and you are expected to beat most other boats to the finish line. PHRF numbers aren't perfect, but they can give you some relativity of a boat's sailing ability if you want to compare them between boats.
As you can tell, I'm a big fan of the B361. In today's market, you can steal one.
Agaliha