That goes for any system, legacy code is good and bad. Often it's battle hardened, but looks super complicated because of the post release organic growth with

That goes for any system, legacy code is good and bad. Often it's battle hardened, but looks super complicated because of the post release organic growth with fixes. Green projects are able to be engineered nicely(if you have the time...) but are missing real world exposure to find all our incorrect assumptions and errors.