One successful angel investor has revealed two red flags that prevent him from investing in a founder in the first meeting. Carles Reina is an angel investor who backed voice cloning AI startup Eleven Labs when it was still in its very early stages in 2022. The firm was co-founded by Mati Staniszewski and Piotr Dąbkowski, and raised $180 million at a valuation of $3.3 billion , in its Series C funding earlier this year. In September, the company announced it was letting employees sell shares at