I have a couple of opinions about buckling springs, which I came to by using a white label ibm model m (at least i think its white, its over at my parents place). I love the tactile feel and the noise. I think its great. However, I do have a bit of a complaint. My knowledge of mechanical keyboards includes cherry blues in a cherry G80-3000, linear alps in the DSI big font mechanical keyboard, and brief experience with tactile alps in a friends ABS gaming keyboard. So I like the noise and the tactility of the model m, but I feel like my fingers crash into the bottom of the stroke... something that i find to be unavoidable. yes they're incredibly precise, yes they're some of the cheapest mechanical keyboards out there, especially when you consider the build quality (at least mine was in super excellent shape whenever i got it), but its (at least in my experience) virtually impossible NOT to bottom out the keys and beat up the tips of your fingers during normal use.
my daily keyboard is the board with cherry blues. if you want tactile click i think blues are the way to go. however, there is a veeeery small gap between when the click mechanism resets and when the switch resets. it is possible (if you're trying) to register multiple keystrokes without the mechanical mechanism resetting. normally this doesnt happen, but if i'm not paying attention and typing really fast it'll happen. very rare, but still possible. with the buckling springs however, the click IS the switch. they're one in the same. all being said, i've found the crunchy cherry blues to be more pleasurable to type on than buckling spring. both are super fantastic keyswitches though. recently i have been wanting to get my model m back from my parents place just to spend some more time with it, if only to remind myself how wonderful cherry blues are.