They were installed in a Smart, just the speakers without the original subwoofers (snails), and they are just a bit better than the factory ones. That is, the change is not worth it, they will not have bass.
However, with the factory subwoofers of the Smart 450, there is really very good bass, a very big difference. So yes, they are worth it. For other vehicles I don't know, but for Smart I saw a big difference. And it also depends on the radio you have. With a simple Chinese one, I am very, very satisfied

Average product, nonexistent lows. The highs are good. But after 3 years, it broke and one of the two distorts as soon as I use it. Without much use. My previous speakers were on my Atos for 22 years as rear speakers on the shelf. So I do not recommend it

Very good for their price, I put them in a Nissan Primera P11 because the factory ones were burnt. They are not something crazy but they are definitely something better than the factory ones.

They cut at a high volume but for their price they have satisfactory sound and bass. If you just want to listen to music, they're fine. Quite a value for money choice.

In their price range and as a simple upgrade from the mediocre sound of my 30-year-old car, they made me look good. Nice sound, decent bass even at relatively high volume levels, no distortion

I have an Alpine 120R (4x18W RMS - 4x50W Max) replacing the factory speakers of a Peugeot 307. I installed these speakers in the rear doors and their cousins, TS-G1710F 6.5" 40W, in the front doors. The result is excellent. They play very clear, with satisfactory bass, up to almost 75% of the maximum volume of the Alpine. Beyond that, they start to distort a bit, but if you're not in your twenties and above, there's no chance you'll be listening to music that loud.
Therefore, these speakers, which I paid 43 euros for all four, are simply top-notch and I highly recommend them as an incredibly affordable and decent solution for car music.

We are talking about 20 euro speakers! 5.5 inches! I remind you to be clear and know what we are getting in this size, economically speakers are all the same mainly due to the magnet. If you spend 80-100 euros, yes, you will see a difference in the bass, but I don't spend that much for 5.5 inches. Well, in terms of bass, it is decent and I expected worse, but for me, they have sharp highs with the shape of the cone they make for vocals, it's perfect. Now, for those who want bass, not kids, with 20 euros, you won't get the job done. The build quality is also better than expected, time will tell. I have Kenwood KFC-S6976EX in the back and I installed these in the front, they play with a 70 euro Pioneer source and the result is very good. Yes, I would buy them again!

I have had them in my car for about 11 years and they are incredibly worth their money. They play loudly but they start to distort at high volume. Nevertheless, you can still hear relatively loud with good sound quality and definitely durability over time. I recommend them for someone who doesn't have high demands and doesn't want to spend a lot of money, definitely value for money.

Nice speakers, I placed them in the front and combined them with the ones in the back for balance. I only have bass with the back speakers, the front ones don't have bass on their own. Of course, they can't be compared to the big ones in the back, but I expected them to have a little bass. Other than that, I trust Pioneer and that's why I wanted everything to be Pioneer. For their price, they are very good.

The speakers were used to replace the factory ones that gave up after 15 years.
Nice sound, clear and powerful.
The included cables were very useful as the factory ones were stuck.

Very good value for their money, a good choice for anyone who wants to listen to clear music but not crazy bass capabilities.

OK, whatever you pay for, you get. The speakers are fine for their price, I'm always talking about normal use. If you are particularly demanding in sound, prefer something better and more expensive!

For their price, they are excellent.
Don't expect crazy performance, but they are very honest.
I had paid 80 euros for more expensive speakers and they broke down within 3 years of normal use.
I hope these ones last longer

Average speaker, average volume - low sensitivity, average bass, average highs, just fulfilling their role.

Clean sound, without significant distortions at high volume. It is worth combining with cheap earphones.

The speakers are simply amazing! Very clear sound and their price is simply exceptional! If you don't have crazy demands and don't want to spend a lot of money, these speakers are definitely worth buying!

Very good choice, definitely better than the 13-year-old factory speakers that the vehicle had. I recommend them for anyone who wants good speakers at a reasonable price in a 13cm diameter