is Forza Motorsport 5 Worth getting now?

Hi. Got a free, downloadable copy of Motorsport 6 with my new XB1 and just finished career mode. Love this game! I bought a used copy of Horizon 2 and I'm just getting started with it.

Also found a real good deal on a used copy Motorsport 5, but thought I'd get r/forza's opinion before I go for it. I'd read some negative things about how they handled microtransactions in this one.

Anyway, how good are M5's racing action and graphics compared to M6 and H2? Is the microtransaction nonsense so bad that it makes the game unbearable? Other thoughts on M5? Thanks!