I don't have any experience with either, but rather a different suggestion.
It's not to difficult to do you own C-41 negative developing.  In fact, it's
rather simple and can be done in a kitchen sink very reliable and
consistently.  Startup cost are also low and you'll save that back in short
order.  There's three chemicals involved and temperatures are somewhat
sensitive if you are doing critical work.  A film tank can be had on eBay
for a few bucks and the chemicals range about a buck a roll if you use to
capacity.

I mean, if you can scan the best for further work on the PC, then why trust
your negatives to someone who's only responsibility if they get scratched or
lost is a "Sorry" and a free roll of film!

Barring that, I'd get them processed by a more professional lab like A&I
(mailers available at B&H).

I've no experience with Target, I use Costco quite often.

In general, they're just like any other labs:  depend on the
personnel.  A couple of shops in my area are quite good, clean
negatives, relatively clean well-balanced prints, etc.  Some other
aren't so good, one is really horrible (e.g., dusty negatives,
prints full of specks, some aren't even aligned), IMHO.

So, my suggestion is to try a few and see the result.  When you find
one that you like, stick with them.

Alternatively, you can use their 1-day or 2-day service.  Their
away lab is usually quite good, except that they keep refusing to
process my Ilford XP2 rolls for whatever reason.

FWIW, YMMV.

Thanks.

+------>      | There are two secrets to success in life:   |       <------+
     /_______| 1.  Never tell any one everything you know. |________\
             `---------------------------------------------'

I don't use Target or Costco, but I do use Walgreens, Walmart, CVS,
etc.  I have a KonicaMinolta ScanDual IV and I scan all my negs.  I
had a great deal of trouble with scratches and dust on my negs until I
hit upon the solution of asking them to process the negs ONLY - no
prints, no scanning.  I have them developed, cut, and sleeved and the
cost is about $2.15 USD per roll in a one-hour place; I presume it
would be similar in your area and at Target, etc.  I live in North
Carolina.

I tried EVERYTHING to get labs to stop scratching up my negs.  I
switched labs, I went to pro labs, I tried mail-order, I explained
what I wanted and why it was important to employees, managers, and
owners of photo shops.  I tried different brands of consumer-grade and
pro films, thinking that was the problem.  The prints always looked
fine, but when I scanned on my ScanDual III (now I have the IV) on max
resolution, I could see HUGE scrapes and UGLY dots and so on.  I tried
re-cleaning my negs, dusting them most carefully with Dust-Off, little
negative brushes, special cloths, everything.  NOTHING WORKED.  I even
took to taking multiple shots of the same scene - not bracketing, just
reshooting - so I'd get maybe ONE GOOD FRAME after scanning!

Sometimes I would get a good roll, and I'd try to recreate that
scenario - but it never worked the same way twice.  Most frustrating.

Since I started having the local one-hour places develop ONLY, I have
had no more than very minor problems.  Sometimes I get a bad frame or
even a bad roll, but the results are SO MUCH more acceptable, I really
can't complain anymore.  I spend maybe a couple of minutes knocking
out a few tiny dots in PS Elements per frame - about as long as it
takes me to scan the next frame - and I have printed at up to 8 x 10
with quite acceptable results - no detectable flaws.  That used to NOT
be the case!

My results have been so acceptable that I have largely stopped
shooting 'pro' C-41 films and now shoot consumer-grade Fuji Superia
400, Kodak Gold 100, and Kodak Ultra 400, in addition to the
consumer-grade Kodak B&W 400.  I'm quite pleased with it.  I have
nothing against pro films, but I am not a pro, and I don't need the
same roll-to-roll sameness or predictability or special qualities that
only pro films offer - I'm not attacking them - just don't need them
myself, since I found that the consumer films were not the cause of
the scratching/dust spot problems.

I've posted my findings before - and I've gotten some really amazing
negative reactions (no pun intended) - some people pretty much
claiming that my reports of problems or my solution just can't be
true.  OK, well, whatever.  I usually get the best of advice on Usenet
in the various photo forums, so I'm surprised that people are so
non-accepting of this particular solution, I don't know why they take
it so personally.  All I can say is this - try it!  Get one roll
processed, cut, and sleeved - but not printed or scanned.  Then scan
the negs as you usually would.  I'll bet your negs are much cleaner!

Best Regards,

Bill Mattocks