The real problem with these "tax breaks" is that the most significant breaks are highly specific and selective. This tax bill basically picks winners and losers. Worse still, the winners tend to be people with the kind of investments and lifestyle that Republican lawmakers have (e.g. the Corker kickback), and the losers tend to be professionals living in Democrat-leaning states (e.g. tech workers).
The relatively small breaks that the majority will receive are temporary, and represent a minefield of exceptions that can leave people with no break at all (e.g. the loss of exemptions). There is a reason Republicans are picking oddly specific examples of people the bill will benefit -- most people will not see much, which is not a very compelling story.