Welcome to the forum.
Great choice out of all the models you were cross shopping.
Did you at least get to test drive the Audi and BMW before going with the GLA?
Absolutely. The X1 seemed the least premium of the bunch. Narrow cabin and the engine droned loudly. We did drive a 320i and it was a gem. But my wife wanted an SUV/Crossover.
The Audi had the nicest cabin but required the most flogging to get up to speed, and did not offer memory seats or Home link.
We also drove an Acura RDX, but no Panorama sunroof ruled it out. The V6 was a nice change of pace from the turbo 4's though.