As you say, nowadays neither MAC filtering nor hiding the network prevents attacks.
I hide it for other reasons, although I have MAC filtering, the good thing is that I live in an area that is hardly congested spectrum, I can choose several channels as there is no saturation except in 1 and 6, and 48 and 52. In that part very well.
About the connection problems, they do occur and I repeat again.... Only in some devices, not in all, I come from a Ubiquiti network in its entirety where these problems is the more than 1 year that I have had it, I have never given me any problem of connection (and with the hidden wifi network).