I do that occasionally. Works just fine.
To me one big factor was also price. Cheap at typical dollar stores and if I recall but close to $10. at an auto parts for basically the same thing.
You want to scrape away any globs of grease and clumps of dirt etc otherwise you will need a lot.
Pressure wash first then spray the cleaner but let it be dry as water will weaken the spray and even neutralize the spray.
Always water down once cleaned otherwise corrosive etching will happen.
Very caustic however, so watch it.
Also I use it as carburetor cleaner occasionally.
As a paint stripper it also performs fairly well however tends to darken the wood, at least the soft woods like pine, but great for fancy carved type table legs.
Great to clean glass fireplace doors.
I rate oven cleaner in same category as duck tape and WD-40 as handy to have on hand.