I think the biggest hurdle to good sex is negative programming from childhood, and also the way a women feels about her own body is highly likely to be the real reason a women has trouble having an orgasm.
Also our culture and lifestyle are not ideal for having an orgasm.
One of the things I noticed is women who feel good about their bodies have little or no trouble having an orgasm, sexual trauma at an early age, negative connotations regarding sex or your genitals are impediments to good sexual expression.
Women you have to find a man that is caring, gentle, passionate, loving (real loving not just a claim of being loving) considerate, patient and one who cares more about your needs than his own.
The road to real orgasm is long and arduous, only the real men who genuinely care will be able to give you the orgasm that you all ultimatley desire.
Real orgasm even for a man on the recieving end is sexual nirvana, its more than just physical pleasure its also some wonderful emotional and spiritual experience, that has no parallel !