Id pass myself. Not because ive used the adaptor you linked, mind you, but because adding the adaptor introduces an additional potential point of failure. what i mean by that is by using an adaptor like that, youre increasing the chance that something pops loose during the cut, as well as potentially magnifying any runout in the router itself, as well as adding whatever runout there is in the adaptor.
Unless you really, absolutely have to be able to change the bits a little easier id pass. Thats just me though, i could be wrong on all points i raised, i just dont trust any product that claims to make an already pretty simple task easier. Its the reason i dont get along well with electric can openers