Hiya,
Can't say I have shot one but I did have a Model 27 in 357 that was setup by Ron Power for PPC years ago. The larger N frame makes a mild shooting 357 because of the weight over the K or L frames. I eventually found the smaller frames were a better match because the diet of 38 spl didn't justify the strength and weight of the larger frame. If you like the larger frame and don't need the power of the 357, you may want to look at the 625 in .45acp,
Tom