One thing to really watch out for is if the product can be sold profitably or not. Especially in the SMB B2B market many technology products are in great demand

One thing to really watch out for is if the product can be sold profitably or not. Especially in the SMB B2B market many technology products are in great demand, but the CAC is just too high for the product to be viable. You can get sucked into to creating a product that your customers love, but which can only be sold at a loss once the cost of acquiring the customer is taken into account. After making something that nobody wants (to pay for anyway), this is probably the biggest mistake made by entrepreneurs.