Swissblock Reviews 

Just the fact that you can't get a monthly sub option but HAVE to buy quarterly is a redish flag, generally speaking.
Anyway got both Altcoin and BTC Vector Quarterly reports (with telegram alerts).
I would say Altcoin Vector is completely useless.
BTC Vector is ok for taking swing trades based on the levels they provide but those are not based on on-chain analysis, i would say they are more technical.
Mind that they don't let you comment on the Telegram group, you can just use the emojis they allow you to (not negative ones, just thumbs up, fire, 100 etc)
Definitely not worth the money.

I subscribed to both Bitcoin Vector and Altcoin Vector, and the service turned out to be useless. Their signals are always late: for example, they flag “flash risk” only after the coin has already dropped (when the damage is done), and they mark “risk ended” once the price has stabilized — only for the same pattern to repeat right after.

It’s the same with their altcoin calls: they label a coin as a “hot opportunity” only after it already pumped, and then quickly move it back to “at risk” once it dumped.

In reality, this is nothing more than describing what already happened. There are no relevant insights to anticipate or navigate the market. For me, it brings no added value and does not deliver on what was promised.