I just used a sawyer mini for the first time, a couple months ago on a backpacking trip down south. It seemed to filter great, but it didn't remove the "pond water" taste from the lake water that I'd filtered.
Next trip I took a little bottle of Mio Water to mix in for taste.
If funky taste is an issue, a filter with a carbon adsorption element will really help. It will remove residual chlorine very easily and most volatile organics as long as the residence time is adequate. If you're drinking water that might have organic compounds that you don't want to ingest, you need carbon, reverse osmosis, or distillation. The mechanical filtration of the sawyers works great on micro organisms, but won't do anything about stuff that is dissolved in the water.