If you are a 1911 carrier (you practice often with the external thumb safety) and want something better than .380acp (Sig Sauer P238), then the Solo is pretty much the only game in town.
I, for one, don't like a manual safety on my carry guns.
.45acp, .40 S&W, 9mm, .38 Spl, .380 acp, 22lr
12 gauge, .223/5.56x45mm, 30-30 Winchester
2 Chron. 7:14 Christians must seek His face