Such a difficult question as it really depends on what you believe about breech birth. Unfortunately the vast majority of us do not have easy access to caregivers who consider it a variation of normal, rather than abnormal and a problem.
However at 30 weeks, I really wouldn't be worried, particularly given that s/he is transverse rather than actually breech. Mine (3rd pregnancy) was breech at my 26 week appointment, but I think this was random as at that stage it seemed like s/he was spinning all over the place and I definitely felt more uncomfortable when s/he was transverse than up/down, based on where I felt kicks, those occassional up/down moments were breech, it was around 28 weeks that the sumersaulting seemed to reduced and I began to feel kicks up top, however I wouldn't have been concerned at that stage and still wouldn't be (I'm about a week ahead of you). I'm pretty small framed, so I think there just wasn't enough room for s/he to stay transverse and some discomforts have definitely been relieved by the change.
This is a relatively easy technique to try at home.