This subject has been beat to death and there are numerous posts both here and on other forums describing both the L n L and in comparison to the Dillon presses.
Now, having said that, I have had and continue to love my L n L.
I reload and shoot 11 different calibers but mainly use the L n L for high volume pistol i.e., 9mm,38/357,45 & 44Mag., as I prefer the Forster single stage for more deliberate loading of my bench rest rifle ammo.
The outstanding features of the Hornady in my opinion are the ease and simplicity of die changing and the powder measure arrangement, esp. with the powder through die expander which slightly flares the straight walled pistol cases in the same station/operation as dumping the powder.
I have found the powder measure very capable of holding consistent charge throws even down in the low ranges used with some of the faster pistol powders.
The one negative you may encounter is the crimping or 5 die and interference with the ejector wire.
There are numerous threads regarding a "fix" such as bending the wire, etc. but I have found the easiest method is to use a Hornady crimp die in the 9 mm and that fixed everything ( and Hornady even sent it free after I bitched and moaned to Tech Support enough).
Re: support, they have been GREAT.
I tend to assemble first and read directions later and they were there every time to hold my hand and send out new retainer springs and ejector wires that I f----d up in my attempts to re-engineer the unit.
Again, I re-load a lot- upwards of 4 to 6 K pistol a year-at least I did before the price increases with bullets- and really like the unit.
Hope this helps.
Gary
