This sort of discussion is best suited to an independent forum not one belonging to McAfee (or Norton) but I think you will find that any software, no matter what it is, gives you problems from time to time. It's unfortunate but a fact of life.
As long as the problems are dealt with eventually is the important thing I guess.
From reading Norton's forums I would say both Norton and McAfee have their share of crises.
At least there is support for the product whereas some software I've had over the years appeared to have no support whatsoever or one that is very difficult to get anything out of.
If you are hoping someone from McAfee will admit to problem updates here then you'll have a long wait.
These forums are mainly peer-to-peer support. However, a forum search should provide you with results showing that you aren't alone.