I've never done the Tamiya Pfeil (why would I?), but have built the Monogram/Revell Do 335 several times... Aside from raised panel lines and a minor fit issue with the front windscreen, it's a fine kit... As noted, you have three options with it. The single-seat fighter, the two-seat Nightfighter, or two-seat trainer... I don't know if the current Revell release includes the PE parts though... Probably not. It includes two figures, a mechanic and an armorer... There're also after-market parts for it available, although I don't know anything about those, being a scratch-builder (and a cheapskate)...
Anyway, for 18.00 or so, you still get pretty good kit... And for the price of one Tamiya single-seater, you can build the single AND two-seater with the Revell kit...