Almost ready to pull the trigger
Isn’t Indiegogo helping you to get a refund if the project isn’t fulfilled ?
Any of these kind of backing programs carries risk. While Indiegogo might offer refunds prior to the closure of the campaign, beyond that its up the the organizers of the campaign, and while they might make every promise in the world now, they aren't actually held to anything and this could change in the future.
I have had some products from Indiegogo that went very well, but these products were pretty much fully ready by the time they created the campaign and it was more for marketing. Others where the product looked pretty close to ready and now here we are 2 years later where they now refuse/don't answer refund requests, are missing all the incredibly late targets they set for themselves and it feels likely the company will just dissolve before the products are actually delivered.
If you aren't ok with risk it would be better to wait for the product to be delivered, reviewed and then you can decided if it is worth it, albeit you will likely pay more.