The voice quality could be sweetened up but other than that it's perfectly fine! Part of Trump's appeal is that he's a little rough around the edges and is not the typical polished liar like the other professional class politicians.
I heard this the other day. (radio stations cross over the cheddar curtain) That ad is just fine for WI IMO. On the coasts' big cities yeah I can see how it would sound like begging but in WI I don't think it will be seen that way, but rather as real and polite.
I don't understand the criticism.