1) BBB's are not meant to detangle. They skim & smooth the surface of hair and supposedly move oils down the hair shaft, but they do not penetrate the hair to detangle it. Combs are meant for detangling.

2) Plastic brushes can be dangerous because every single one of those teeth can have harsh seams on them which scrape the hair and cause damage. Paddle brushes (such as the one in your link) should be carefully inspected for seams or anything which might catch, pull or otherwise damage the hair. Run your fingers along the bristles - each one will likely have 2 seams. If the seams are sharp and obvious, do not use the brush.
    If you have much patience, you can file the seams down and go over the teeth with clear nail polish. Or, if you manage to find a brush without harsh seams, it should be fine.
    Personally, I used Conair Velvet Touch brushes for years without any noticeable problem.

3) I use only wide tooth seamless combs for detangling. At the moment, I have 2 rake combs by Creative and 1 made by Conair. And I may never go back to brushes.

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Either one's fine (I've certainly been called worse), though most folks here just call me Angel.

And the seams on the brush that you pictured would be all around the outside and on every single one of the bristles. As I've said, some seams are worse than others. The best thing would be to forego brushes altogether and invest in seamless combs. But you might need to take baby steps. I didn't let go of brushes until just over a year ago.