GMK Bento R2 is a solid keycap set and the quality is pretty good. I would just say in person the colors didn't match accurately with the renders such as the blue-grey modifiers which look more deeper blue in person. The salmon (pink-orange) accent keycaps also look a bit more orange than the renders as well.
Overall I like this set but man is it ever difficult to photograph. Everyone's phone seems to be juicing up the saturation of the blues and the reds in this set making it look way different from real life and the renders are completely off too. I tried my best to colour correct my photo so it should look pretty true to life. The product you are buying will definitely NOT look like the renders. The blues are only slightly cooler and more vibrant, the whites are actually a creamy off-white and the pinks are actually a bit more orange like a coral colour. If you are planning a build with this set wait until you get the keycaps in hand to order any particular colour of keyboard to go with them.
Absolutely amazing set with lots of great colors that aren't basic and boring, yet works with so many setups! Only set I've every bought novelties for as well. 10/10 my favorite set of all time.