i find it to be extremely comfortable crossbody... it is my bag of choice for a super long day of shopping or errands because i don't have to worry about it slipping off of my shoulder... for me, the way the body of the bag rests at my side helps to support some of the weight if i have it loaded down so i've never had any discomfort from the crossbody strap at all... i am a bit over 5'10" so the bag falls at a really comfortable spot on my hip but it might not do that if your are shorter or slimmer than i am
i carry a wallet, a cosmetic case, PDA case/organizer, two cell phones, a book, a pill case and two sets of keys and an eyeglass case to give you an idea of the weight i am usually carrying in my bags
you ultimately will have to be the judge of whether it will work for you based on your shape, size and the the content of your bag... if you find one, load it down with the contents of your purse to see if it feels comfortable for you... the SAs actually encourage you to do this to help you commit to the bag