Alfa's have always been reliable cars. It has been the dealers, or owners, who do not know how to service them that has been the issue you have witnessed as reliability.
That said they are thoroughly modern cars made by Italians, so look at Fiat, which is what they really are, for reliability reports. The last real Alfa Romeo in this country was the Milano from 1988 and the SZ in yurrup.
I test drove one, very nice motor, modern electronics. A little small for a daily (for me) and near impossible for my frame to get in the back seat. Alfa is bringing back the Alfetta sedan which will be larger and the GTV coupe which is rumored to have 600 gas and electric horsepowers.