@LexYeen i mean if it's your only option and you need to solder something by all means, but do get a proper one as soon as you can
you don't even have to go with a $100 one (which is still a fairly cheap iron, these get expensive if you want the highest quality); hakko sells the FX-901 for $30, though it's a battery-operated iron with all that that entails, and there are only two tips available for it. it is temperature controlled though
-F
@LexYeen actually, i'd amend that to get better tools as soon as you can if you anticipate needing to do more soldering in the future
-F
@Felthry I'd be operating on the assumption that, if one has a sudden urgent need to solder things and lacks the proper tools, there's likely going to be a need to do more soldering under better conditions in the future. ;)
@Felthry Yup, that's exactly my stance on it too! If you need to solder something Now and you have no other tools, do your best with what you have and get better tools ASAP.