I'd be leery of cheap anything, including the current Blaupunkts.
It's hard to tell whether the old company is even involved anymore with the product, or has merely licensed the name to another company to apply to some Chinese-made ODM equipment. Even if the company still exists, the cheap ones are still going to be badge-engineered.
The brand has had a spotty distribution record in the U.S. in recent years. It seemed to disappear almost entirely before Crutchfield started carrying the brand again; now its selection is back down to two models.
For many years prior, U.S. support was based in Illinois along with the parent company Bosch's operations.
Look into the current U.S. distributor now, and it's some small car stereo outfit in Los Angeles, which should make one cautious.
I had a top-line 7-series Blau in the 90s. It had the perfect low-key Euro interior look, was a quality piece, made in Germany, and loaded with smart features. When it succumbed to display glitches that made it unusable, I replaced it with one of the then newish media players. It was still pretty good quality, made by Bosch in Portugal, but the quality was obviously a step down. After I found the USB media connection was very unreliable, I replaced it with a top-line Sony media player, which was well-made and sounded surprisingly good, and never looked back. But even Sony eventually dropped the model and stopped making the good, higher-end stuff.
When the OEMs started paying attention and made OE systems better in quality, and tightly integrated, the aftermarket 12v industry suffered terribly. Now, there seems to be a lot of cheap, off-brand stuff to fight on the bottom end. The middle ground is occupied by the consolidated survivors, with some OK, but not great stuff. The only money still being made is probably from the double-DIN big screen units, which can better slot into the big OE spaces, but carry commensurately high prices.
If all you need is a cheap radio to make produce some sound, it's probably OK. But I wouldn't expect, or count on it to be long-lived, let alone something worthy of the old Blaupunkt brand.
I'd probably look for a low-key looking JVC/Kenwood, Pioneer, Alpine or another brand that's still a real company.