I bought mine with brown coolant

If it's green you can ask how it was flushed, if it's orange - it seems most guys on here will want to flush it.

I think WOT shift hesitation from 2nd to 3rd on a 19 year old car with 160k on it seems normal... with some driving (i'm guessing it's been sitting) it should get better.... if it like... really really didn't want to shift... then taht's an issue but if it hesitated a little, meh.