Probably not, not sure, and no.
Does it do the job and accurate? I don't know driver robot, (link?), but I do not trust any driver update software. The posts we see in these forums about such 'update' software leaves me to wonder if such utilities will ever work.
Is it safe to download? Link please.
Is it safe to trust and pay with credit card? I can't say, but I never purchase items off the internet unless I am completely happy with the web site, ie it is a recognised retail site.
May I ask, why look for drivers? If they are working now, why do you need to upgrade them? If they are not working now, then the hardware/software supplier, or the computer's supplier/maker is the first port of call.
There is an often used phrase, "if it is not broken, don't fix it".