The guy is looking for the Mass and sacraments, which the SSPX provides. Yes, they are definitely playing with hell fire as you noted, but you go for the Mass and the sacraments to a certainly valid priest - NO priests that were not conditionally ordained by an SSPX bishop are the exception, not the rule - so yes, you do need to watch out for that.
But I have never heard heresy or error from the pulpit, their Masses are always done well, and their counseling in confession has always been very good, soundly Catholic.
Agree with your first paragraph 100%, but beg to differ with the second.
I have heard heresy and errors from the pulpit at SSPX chapels, and their counseling in confessions has often been flat out un-Catholic and immoral.
That said, I still attend SSPX because it's the only Mass around me, but I go to mass, leave during the sermon, return until the end of Mass, then immediately exit.