Well, it's pretty good for base planning and stuff but there's a tiny problem with the conveyors (basic and normal ones)...
Let's say that I put a conveyor line, with twists and turns, from the extractor to the smelter... all in holograms. When I get a few conveyors in my inventory and then use the actualizer on them, it won't respect the layout i chose. It's good for straight lines, but when it has turns, it just won't work. I have to use the holomap to find them because sometimes they're placed into the ground itself. Funny thing is that it actually respects the elevation as far as I can tell.

P.S. if you need screenshots, ask and I'll make some.
P.S.2 if you knew about this bug and it's fixed now (I haven't checked in a long time), please let me know.

is definetely a high priority thing to fix. When it missbehaves it does place the block but in the wrong orientation (and it happens in mod version 3?)?

and yay that people use and partially enjoy stuff that I made

Okay... just created a new world with cheat_manufacturer recipes on just for ss purposes... I've got some ss while I was planning the conveyor so you could see what I was doing. They are chronological in order.
Copper extractor at -8
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416557

Tin extractor at -17 (but conveyor line is at -16)
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416607

Holobase view of the extractors and CPH (holo conveyors don't show up)
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416656

I want to let you know that I've put my holo conveyors like this:
from smelter input hopper to -16 (called main line from now on)
from copper extractor (-8, manufacturer side) to main line
from tin extractor (-16, coal extractor side) to main line

Smelter view
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416706

Notice I have 56 holo conveyors left out of 100

I crafted the actualizer and 100 normal conveyors
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416745

Actualized (56 conveyors left... looks good so far)
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416784

But... It's wrong!!!
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416864

Another look from the tin extractor
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416908

I digged to the junction and saw this
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416940

Another holoview from the tin extractor's POV (comparison for the first holoview)
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=828416982

I gotta say that it was the only mod installed (didn't want to take any chances) and, as a side-note, the holo conveyors don't keep the orientation when you super-build them, like the normal ones do for some time now

Hope this helps. If you need any more details, please let me know :)

An issue that affects this was tracked down, actualization always used the segment the block picker was in even if the chain moved into different segments.