Love it!!!! I've always like the 64-67 cars. WAY under rated style in my opinion. 68-69 cars are termed "stepchildren". I had a '68 (they yellow one is a '69-- at least it has '69 fenders) that I swapped a few big blocks into. The gold one is a '72 (could be a '71). Mine is a '72.
Buicks are usually fun "cruisers". Usually decent power/torque and reasonably comfortable for their era. Sometimes Buick builds a real muscle car and they are no joke when they do. '70 GS Stage 1 is a top 10 fast muscle car that is in the Hemi xyz car, LS6 Chevelle, CobraJet xyz range. Buick GN are way sleeper type cars besting Corvette of same year in the 1/4 mile. Some of the late model stuff, even though it's front drive and NO ONE is paying attention to Buick cars these days are supposedly fast.