Just to be clear, are you getting flat and level confused? You need to be checking for flatness, if one is able to stand up without falling over it's level enough. Using lasers to check for flatness will skew your readings unless the "self leveling" feature is turned off. You want it to shoot a dead straight beam "in plane" with the floor.

Level and flatness, get confused all the time.

Flat like a pane of glass, not level, like the bubble on a level.

If the cabinets are level, and the flooring running next to them is not the same level of flatness, you going to see the difference, at the toe kick, under the cabinets, if it is too extreme.

What does it sound like I am referring to, flat or level? I've only been dealing with a foundation person at this point--as the flooring sub has not been brought in as yet which I understand is more towards the end of the process. In any case, do have any suggestions on what to do next?

As far as the kitchen flooring ut only varies by 1/2-3/4" over any one cabinet run. When cabinets are shimmed my GC plans to trim down 6" toe kicks to fill it all in. Do you think that would be noticable or acceptable? I don't really know.

However, I'm concerned about the entire house as well and not just the kitchen. Prior to this we had a laminant floor and in the hallway (before we added the new piers and leveled it), you could almost bounce on the floor in the center area--perhaps because the floor was not flat against the subfloor in all places?

Now, we know what the problems are I would like to address it instead of just spending $20K for a new floor and having nails pop out, etc. We've not really discussed the floor plan in any detail as yet as there are still many other issues to address first, however, I thought I'd start doing some further research on the options (including doing more foundation work if necessary which I'd like to do before they lay sheetrock).