I like a lemon around the rim of my glass of Heff. That's how my very first heff was served to me years ago, and that's the way I like to drink it. I too think it compliments it perfectly. On the other hand, always good to try it both ways and see which you prefer! There is no right answer. Some steak conessiurs think using steak sauce ruins a good steak. I'm one of them. Mainly because my steaks are carefully seasoned or marinated, and I think the sauce kind of ruins the flavor I intended. I'm sure there are Heff fans that feel the same way about us lemon users!
For the record, I've always thought the insertion of fruit into beer was some yuppie crap for people that didn't really like the taste of beer to begin with. When I used to work in liquor stores, I hated Corona because it came it boxes that were printed with cheap ink that would come off on your hands when you handled them. The box tops and bottoms were also fastened closed with big staples, which would lacerate your hand if you weren't careful breaking the boxes down after stocking the shelves. No other beer manufacturer was so annoying. I was totally convinced that Mexicans were pissing in the beer at the factory and laughing at the stupid gringoes drinking it! About the late eighties, I noticed this beer was flying off the shelf and every yuppie D-bag was walking around with a slice of lime in a Corona. I still refuse to engage in such silly behavior. But as I look at my slice of lemon in my glass of heff, I gotta wonder if they were on to something, or were they just trying to make a bottle of urine more palatable...hmmmm.