I had the opportunity to test this toothpaste for two weeks (with a free sample) and I confess that I did not think I was going to hang. But what's nice is that indeed the toothpaste is not at all aggressive. We have to wait 2-3 weeks before you feel the effects, for my part I have less worries gums (occasional bleeding / redness). Do not expect an immediate effect, but rather over time.
So I have ordered again via a subscription and I now use principal toothpaste. I shelved my toothpaste so-called "white-coolness miracle" and I'm glad to have a softer product. I take this opportunity to ask my dentist what he thinks, to see if my impression is confirmed.
The only small snag is the price a little high, but subscription and in pack of 2, it's still reasonable.