It's very subjective. I've never used the showers, but for the rest is nothing special. Food is limited, wine is mediocre, sparkling wine less than mediocre. The beer is good, but we're in Belgium, there would be a scandal if it wasn't good .
Everything considered I can't define it as fantastic in my opinion & experience. IB Schengen lounge in MAD is way better. AY Schengen lounge is better. LHR GF food and wine is surely better.