It looks good for the price, ( edited after looking into it more), but be aware it doesn't use genuine Cherry switches, it uses cherry blue clones. If its the best thing that fits into your budget it doesn't look like a bad choice, there are a few reviews on reddit and it was featured in a massdrop sale. But
here is a video of a similar keyboard from what looks like the same company
As for changing switches, in a short answer, no, it is not worth it for a keyboard of that price. If you know how to solder and are willing to pay an extra $50 to buy the green switches you could desolder the blue switches and solder the green ones in. It looks like the switches are plate mounted so that would be the only way to do it.
Another warning about buying chinese boards from sites like aliexpress is that quality control is not always the best, and if there is any issue it can be very hard to get product support.
a little more information from reddit.
https://www.reddit.com/r/MechanicalKeyboards/comments/330awt/eelement_rgb_keyboard/