First, welcome, glad to have you aboard.
I've used a Crossbreed for several years now. There are makers out there offering the same basic design. Can't speak to their price, quality or warranty, but I can say I've never regretted buying from Crossbreed for a second.
Assuming you're considering an IWB rig because you want the highest level of concealability, I highly recommend ordering the Velcro clips with a Crossbreed Super-Tuck, and ordering a
Beltman gun-belt with the loop-side of the Velcro sewn right into the belt. Crossbreed's V-Clips are just barely visible. If I've ever been "made" wearing my rig this way, it was likely by another gun-nut who just knew what to look for. I've worn this rig with shorts and a thin tank-top tucked in and been comfy all day, and if you "blouse" your cover-shirt over the butt of your weapon, printing is as minimal as you can ever get.
Beltman's 1 3/4" wide belt is what I have, but you can get 'em thinner if you like, or special order up to 2 1/4" or 2 1/2" if I recall correctly. The
Velcro goes the entire length of the useable inside surface of the belt, so adjusting your carry position is quick and easy.
This combo will set you back around $150 (+/-), but it's a system that's solid as a rock, has outstanding combined warranties, customer service from both companies is top-notch, and there's a better than fair chance that you'll save yourself the expense and frustration of trial and error because the belt was too weak to carry the weight, or you didn't feel confident in the retention, or the system wasn't as versatile with different kinds of clothing as you need etc. Or the absolute worst problem with many IWB systems is they are inherently uncomfortable. If you can't stay comfortable for long stretches, you simply won't carry
all the time, and carrying part-time due to comfort issues just isn't necessary when systems like these are so readily available.
Good luck and let us know what you decide. As someone else said, Crossbreed is a sponsor of this site, so if you go that route, make sure you click from here to there. There might even be a USA Carry coupon-code floatin' around somewhere. Not sure about that, but search the site before you order to make sure. Stay safe.
Blues