Hi, thanks for the mention, Im the traditional painter chap who hand paints kitchens and rates Little Greene very highly!
The oil eggshell is one of the most reliable trade quality oil paints you can get nowadays in that it dries as expected and sands down next day without any trouble. That is not the case with a lot of oil eggshell from other companies. It is "sticky" so if you arent a confident painter, or you are good and want a brushmark free more easily, add up to 10% paint conditioner (Owatrol instead of white spirit) and you will be very happy with the finish, sanding between coats.
F&B hybrid eggshell, I can get a really nice finish, because I have the right brush and I know what to do, but no way is it a delight to use, and I get enough feedback and personal experience to say it is not reliable, so I don't use it.
Little Greene acrylic eggshell is a doddle to use, and with a drop of Floetrol paint conditioner, it flows even better and levels out brushmarks, if you have those troubles.
Little Greene paint across the range is genuinely fab. On new plaster, dilute the absolute matt (old acrylic matt) about 15%, using a 3/8' pile sleeve. If you know how to paint nicely, at first glance, it will look like it has covered in one. Second coat of absolute matt or Intelligent Matt covers as solid as you like.
The LG intelligent matt is tough, the absolute matt is like the F&B estate emulsion.
Anyone who says Little Greene paints are expensive are not being fair. Across the board, the coverage is outstanding and it just doesn't misbehave. Little Greene Sanderson, and Paint Library all have the same pedigree, they are from the same factory I believe, just come in different colour ranges and maybe slightly different formulas, but top trade quality. Fired Earth and Zoffany also similar provenance. If you like your painting to the highest standards, and you like English heritage traditional colours, I wouldnt go looking too far beyond Little Greene myself.