I know an Israeli based ICO that had a very successful campaign on FB recently.
It's not ico, it's binary, false advertising to get people to deposit. And thank you.
On topic:
Nowadays with cloaking, you can not just rely on cloakers to do everything. All of the money facebook/google spends to protect their platforms for banning and catching guys. Prefletching, downloading page using users internet, account spending amount verifications/reviews, and thousands more methods being aded/tested daily by these ad giants.
Most of the cloaker use and suggest you to use exactly same method, php include with tracking pixel - no user redirects. It does work, barely when scaling fast, but when going smaller budgets, you will be fine. Basically any cloaker is ok. So go with the cheaper one for initial tests.
When dealing with adwords, make sure your safe page looks absolutely well done and goes well with your ad copy. Keep your budgets low first week or two - 50-100 per day. Keep doing random ads to build up account quality scores. 4 safe ads, one real cloaked ad.
I run both facebook and adwords display for crypto(not search), if you want fast scaling and cheaper results, do not use search, keywords like ico, crypto and investing are extremely expensive. Better to create targeted investment based display ads.
Good luck.