When I first open the box from Amazon for the first time, I went “oh no” because the scent is really strong and I’m scent sensitive. I wish there was a scent free version of this, but they really do the job and don’t leave a STRONG scent once the laundry is completed, just a nice very light fragrance if you don’t like smells in your clothes. Easy to pop straight into the bin (I have a top loader) - they work best if you get them closest to the bottom of the basin if you’re using a top loader (don’t put them on top of your laundry). They don’t affect color at all that I’ve seen. There’s no cleaning power to them, they only deal with odor. I’ve used these for years and never had one leak on me unless it got wet. They are sorta expensive, but honestly when it’s that or stinky clothes, I’d rather have the little bit of expense, and they’re cheaper in the two pack than to buy singly at the grocery store. Well worth it.