I am always fascinated to read first-hand accounts, and they provide many valuable nuggets of information which you will never find in official documentation. However, they also have to treated cautiously; partly because memories mutate over time, partly because they may still contain misinformation which was widespread during the war.
If you read personal accounts by RAF and USAAF fighter-bomber pilots of their attacks on armour in NW Europe you would believe that the battlefields were littered with blown-up Tiger tanks hit by Typhoons and P-47s. We know from objective evidence, however, that that simply didn't happen.
Tony Williams: Military gun and ammunition website and discussion forum