Regarding the AS Roma v Fiorentina match, at least I only said that maybe AS Roma will fail to win, and that doesn't mean AS Roma will lose. Because ya, anyway, sofar this season atleast AS Roma has had better results for home matches. But ya, if for example you might be betting on Fiorentina, then maybe you could choose the double chance option. Or maybe, you can also choose the Asian handicap option by choosing Fiorentina +x.xx, and I think that will still give you good odds, considering that AS Roma is still the favorite team in this match.
Judging by Roma's latest results, the team is on the rise, so I think it's too risky to bet against them, especially if it's a home game for Roma. In addition, the odds for Roma to win are quite attractive and justify the risk:
2.08 - 3.28 - 3.58
I am sure that Roma will win at least one of two such games. Fiorentina's double chance odds are 1.67, which doesn't look lucrative.