I just used this strategy for the first time on my third investment. Love the idea. Hate the stock market. Hate 401K's. Hate what I don't know. I am not Warren Buffett. I cannot possibly add any value to a multi-billion dollar company with my penny-ante investment in its stock, but I can add value for myself, pull out the loan, pay it back when I want, if I want, write off the interest against the asset (which I can charge myself whatever interest I want as I replenish the cash value of the policy ((which didn't actually go down, kept earning interest and dividends)) all for a net effective interest rate of 1.9%). This strategy I understand.
They are expensive, for the first few years, but, interest (and maybe dividends (some policies earn them, some don't)) are guaranteed, for the life of the policy, and your cash value is always 100% intact, earning all the interest that's due. If you stuck your money in the bank, earned interest on it, and then took out some cash, you're only earning interest on what is still in the bank. With the type of loan you're suggesting, and the one I used on my last acquisition, you borrow against your cash value, not FROM it, so your cash value remains whole, and you're still earning interest on all of that, so your cash value continues to grow with compounding interest. The loan you take out comes from the insurance company's general fund, which is where your dividends come from (if your policy earns them), and you pay interest annually on that loan, all while your cash value is still earning interest, so the spread is probably going to be less than 2% on that loan.
Even if you don't pay off that loan, so long as the policy has enough cash value to service the monthly premiums and stays in force, upon your death the policy will pay off the loan and the remaining proceeds go to your beneficiaries. So, you've got an insurance policy for your loved ones, a reserve of cash you can use just by sending an email with a simple request form with the amount you want to borrow (no other questions asked) and many other advantages. If you've got it, use it, replenish it and use it again and again and again!