Anyone with experience in crowdfunding in SG before?

Crowdfunding mainly covers 3 parts : project crowdfunding (kickstarter), equity crowdfunding, and debt crowdfunding (p2p lending)

Adding on to what Kelly mentioned:
When I read your given website, there are a lot of questions left unanswered. There is no strong credibility of how the things work.
What is PARF? Why and how is it capital guarantee?
How does this scheme earn money? Where does l the money come from? I don't see how you can earn the 5%. If you cannot answer this question in one sentence, this is clearly too good to be true.

Who is the one holding this scheme? What is his credibility and history that meet this criteria of the scheme?

All I can see is flowery and attractive words.

If you want to know and research more about crowdfunding, go take a look at what is already available, backed and legalised
Project crowdfunding : kickstarter
Equity crowdfunding : fundedhere
Debt crowdfunding : p2p lending (info can be found in seedly, read the reviews and learn how the platform works)

If it looks too good to be true, it likely is ...

Firstly, playing structure games with entities with quasi sovereign risk is well accepted (corporate bonds with SOE, munis in US) - there is potentially leakage (ie the SOE could still default and the govt leaves them. Hyflux is a related type of example). A quick read of the website linked is a bit hard to really evaluate what is underlying scheme. So there could be dangers if can't line up the gov't guarantee and then your capital at risk

Secondly, the spreads on the instruments just mentioned tend to be thin (things with very obvious gov't backing will trade close to gov't bonds, as the linkage gets weaker, you have more spread). The website that explains scheme mentions 5% which seems amazing amount of spread for what is advertised as risk-free

Thirdly, "if you want more details - whatsapp XXX on YYYY" - this doesn't fill me with confidence that this is a scheme with the right checks and balances!