I received a vouch copy the other day and I'm here to leave a review.
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There are, from what I can tell, less than 15 or so total customers in their server at the moment. Four of them have claimed the cheat is detected, one going as far as to say he got banned on a fresh account on a different PC. The other users have gotten banned within 1-2 days of playing with the cheat.
I have several spoofers I use, all of which I know are undetected. I have unbotted, fresh accounts with no previous traced logins specifically made for testing cheats, so there should have been no influence from thirdparty factors (ie. tracked account seller, delayed bans, etc). I tested this on two separate accounts. In total I played 20 games, 8 on one account and 12 on the other. Both accounts are banned as of today. Neither account was account banned, they were HWID banned.
This leads me to believe the cheat is detected, even though the staff members claim it's not. There is also one user who vehemently states that he hasn't been banned since yesterday, which most likely is because of delay bans.
Regarding the cheat itself, the radar is alright. The only problem I had with it is that enemies are bugged and sometimes look in incorrect locations and it's desynced quite a bit. The seller claims its not a teamswap cheat, yet there are no other functions besides chams to indicate that it's not teamswap-based. I find it difficult to believe that it's not a teamswap cheat like the ones posted on public forums for reversal. If it is a teamswap cheat, that probably explains why the cheat is detected.
This strongly resembles publicly available teamswap cheats you can find on Github or UC with the only difference being it has radar. If it is a teamswap cheat, it will stay detected and there's virtually no way around it. Plenty of teamswap cheats have been made in the past, and none of them have survived longer than a couple days. Teamswap requires, at the very least, needs some form of anti-screenshot protection but IChams doesn't have this.
TL;DR
It's detected.