Very compact and lightweight. At ~240g, you can carry them easily for hiking, backpacking, or travels.

Decent magnification for the size: 10× gives good reach for distant subjects or general viewing.

Fully multicoated optics help with light transmission (important in a smaller objective lens) and reducing glare.

Rubber eyecups and some rubber armouring help with grip and durability (for a budget product).

Fold-down design / dual-hinge bridge makes them easy to stow into packs or pockets.

Those others (especially the 42 mm objective ones) will perform better in low light, offer a larger exit pupil, and generally better image brightness/clarity in twilight.

But this Tasco 10×25 wins for portability, low cost, and ease of carry. If your use is more casual (daylight, travel, sports, occasional wildlife), this is very serviceable.