Hard to say without knowing how attractive your bike is to local thieves or how serious its loss would be to you. My view is that better locks rapidly get into the law of diminishing returns. I.e. even a cheap lock will deter most thefts of opportunity and, OTOH, protecting against a determined thief is hard even with the highest quality locks.
I've just been using a cheap cable lock and haven't had a bike stolen in over 30 years. But I also don't use a flashy carbon-fiber wonder bike for commuting or grocery shopping.