They sell low luster sheen. Would you recommend that or satin?I've used 'em all. The best "bang for your buck" is SuperPaint. If you want to spend a bit more money, Duration. Emerald is something I use on aluminum siding. Something about it makes it go on "buttery smooth" on aluminum.
Duration and Emerald are high - priced, but, to me, they are not high end paints. As for an eggshell finish, I don't believe any of them have eggshell, but they all come in Satin. Eggshell is more of an interior type sheen.
The sheen also affects how waterproof paint is as well. You can download the data sheetss for many paints and check this out for yourself. If you have a lot of wind and rain hitting the house then a more durable or water resistant paint sheen will help.
For me it was mostly about the durability and color fastness
That practice has been outlawed in many areas, too much danger of catching the siding on fire. It can also heat up the back side where a fire can break out after the painter has left for the day. The only heat allowed today to remove paint is electric.I used a blow torch to soften the paint and scrape it off to bare wood.