At first glance, capacity seems to be the main benefit, from the above link:

Battery Capacity: 3400mWh

Compare that to Eneloop pros: 2500mAh

Using this converter https://convert-formula.com/mwh-mahz 3400mWh at 1.5v is 2256mAh so the Eneloop pros actually have more capacity.

Downside being that the eneloop pro needs its own charger, these should be able to charge from any phone charger, or come with their own 4-to-1 usb cable.

Constant 1.5v and weight.

should be little to no memory effect unlike NiMH

Modern, high-quality NiMH has little to no memory effect. Eneloops are the gold standard, though rumor has it many other brands have caught up.