Not had a huge amount of time but my tests so far are pretty positive with Spannerhands 3dBenchy gcode from Simplify3d.
I'm a noob so take my comments with that in mind. My testing is far from scientific and my bot is far from perfectly calibrated.
However.... I'm getting Nice prints!
The only problem I'm having is the 0.179 first layer is not giving me great bed adhesion. I'm getting slight edge curling on the door overhangs which is catching on the nozzle and dislodging the print.
I normally print with a larger 1st layer height.
I'm going to ask SPANNERHANDS very nicely if he could re-slice the 3D Benchy just with a larger .3 or .35 first layer? I'd like to try it with different sample filament (Black is not the best of tests) but I'll only get one shot to get a good print as my samples are only 5m lengths.
Here's a few pics from the 2 prints that managed to stay stuck.
Excuse the photography - not in Spannerhands league
As you can see from the rear of the boat the "3d Benchy" name is clearly there. My Slic3r print is just a raised area you can't see the text at all. Sorry no pics of the Slic3r prints yet.
So in summary so far Simplfy3D vs Slic3r 1.17 (and a quick test of 1.29):
1. Tool Path seems better. With one exception see point 3.
2. Surface Quality much better. With one exception point 4.
3. I noticed that when printing the four door pillars that S3D doubles back on itself. ie it will print pillar 1 through 4 on one layer then print 4 through 1 the next layer. So pillar 4 has two consecutive layers printed. This doesn't help with cooling those top overhangs.
4. First layer seems to be selected layer height (0.1984) squished to 90% (0.17856), and 100% width ie 0.4. Slic3r (at least mine) is set to a larger layer height (.35) and 200% width. I definitely get better adhesion with these first layer Slic3r settings however I think I could duplicate this behaviour in S3D by using 2 processes.
5. Fine detail (3D Benchy name on back of boat) - much better.
6. Seams appear a bit ragged.
I tried to set Slic3r to the same settings where possible ie 3 perimeters, 3 top and bottom solid, same speeds.
I'm a relative noob so It's more than possible that changes to Slic3r settings could get me closer but considering this is someone else's Gcode and not by any stretch optimised for my setup I'm pretty impressed with S3D!
Am I $149 worth of impressed? maybe! Watch this space.