Can't go wrong
This is my second Sailor fountain pen I have ever purchased (both from Anderson Pens [the first is the Graphite Lighthouse] ) and both have been spectacular in the writing experience.
Both pens are the Slim versions (I wear medium gloves) and ergonomically they are perfect fits for my hands (unposted).
The nibs I favor are the EF and these Sailor EF nibs have to be one of the smoothest, if not THE smoothest nibs right out of the box.
I have yet to experience any hard starts or skips (I have used Monteverde Sapphire and Green up to this point).
If you have medium hands, small handwriting or your motor skills handle fine nibs with finesse it would be difficult to find a better fountain pen.