"IBS (Intel) is confirmed in AeroPenguin's Marriott code list. hotelcorporatecodes.com lists IBS at 10-15% discount, "⚠️ Sometimes" verification. FlyerTalk enforcement thread context: one member noted "IBM used it 14 years, 80-100 nights/year, never asked once" — but IBM is a distinct code with different discount depth. Intel's IBS at 10-15% discount is in the "low-pressure" zone where hotels rarely verify. One FlyerTalk moderator noted: "the primary trigger for audit is the rate delta — if the corporate rate is close to BAR, staff see no reason to challenge." IBS falls in this low-delta category at most US domestic properties."

"I always see people saying that they aren’t able to do mobile check in. I’ve only stayed at two Marriott hotels where I tried to do mobile check in ( both of them never been to before) and they both let me without having to go to the front desk which I was really happy about because I had lost my ID and didn’t know how I was going to check in. Also I think I only had about 20 nights at the time, I usually stay with my boyfriend because he’s titanium."

"I have been asked to show some proof couple of times. I normally show my corp id but credit card with employers name on it has worked, too. As would probably just showing my laptop with employer e-mail account or whatever. My impression has been they are happy with just about anything that proves I'm working for the company whose rate I use and why wouldn't they."