First post is the most factual. The rest, are opinion and speculation.
I owned a Toledo V5 (150) and sure it had problems, but nothing that the other mk4 engines (including the turbos) don't suffer from. I.E. coil packs etc.
I never had a problem with oil consumption, chains, pistons, or anything else. Like most engines, take care of them, and they will be fine. Power, well it was progressive, and torquey, but it's only 150BHP pulling along 1800KG of car, it's not going to be flighty, and they will be more suited to cruising than performance.
FYI: The reason the V5 and later the V6 engines were dumped is because:
A) Cost to manufacture
B) Weight
C) Space constraints
D) Emission laws tightening up
Neither were dumped because they were crap engines. If you are going to say something, make sure it's at least semi true.
HTH.
Give me a shout if you want more info. Or Billy, as he had/has a 170 golf.