Yes I have used all 3 butterfly keyboards. I agree the first gen was awful. 2nd felt great but was quite loud[0] and had the issues with dust obviously. This is very much like 2nd gen with just a very very subtle softness to it. It feels really to me. I think if you love 2nd you will love 3rd even more.

[0] The whole "omg it is so loud!!!" thing kind of made me laugh as everyone that I knew who made such a complaint had a mech keyboard with some obnoxiously loud cherry mx switch in it. I mean yes I did feel the 1st and 2nd gen butterfly keyboards were too loud but they were still quieter than any mech keyboard I have used!