30% of 230 verified Adidas Adizero Boston 12owners don't recommend it, and 1 describe specific problems — based on real owner comments from Reddit, enthusiast forums, and YouTube.
For balance: 56% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score
“Adidas parece que sigue sin darse cuenta de las grandes mejoras y evoluciones que el resto de marcas hace”— @davidbelmonte2305 on YouTube
“Prefiro o antigo boston 11, duro igual cama de puteiro e responsivo como mulher de malandro.”— @EuSouAtomo on YouTube
“Es un modelo que no me termina de convencer.”— @AndresSaaN on YouTube
“Lástima que no hayan mejorado esto en el nuevo modelo.”— @azotepolar on YouTube
“custo beneficio ruim mesmo.”— @takeopariu on YouTube
“las siento más grande de la talla de calzado y eso me tiene inseguro”— @albertohernandez1433 on YouTube
“Se te llega a meter una piedra en el hueco que hay en la suela y vas muerto”— @franvelez1994 on YouTube
“Muy malo las Boston 13 . Me lesionaron.”— @marianonecochea3856 on YouTube
“Yo ya me estoy cansando de Adiddas,su duración no es mucha”— @edilmagarcia6082 on YouTube
“both have been giving me achilles tendon soreness after long runs”— Secret_Helpful on Reddit
“No puedo decir lo mismo de las Boston 12, las compré y me resultan un tanto espesas”— @CarlitosGarciaNguyen on YouTube
“Las Boston dejaron de existir desde la versión 9 para mi, no puedo con esos monstruos amortiguados”— @sergioluisgopar on YouTube
Not complaints — practical notes from owners that didn't affect the score.
“I still have the B12, already ran 300+ km in them. With the foam on my B12 already matured and compressed with such mileage, it is slightly softer than my new B13”— nathanielad on r/RunningShoeGeeks
“My 9.5 in Adidas world is in fact 9 2/3 and is too roomy. But 9.0 is TTS and is definitely small.”— vcuken on r/RunningShoeGeeks
“It's the only shoe I've ever had to size down in. Always always a 10.5 but was a 10 in my B12's”— ComeKnowMeAsGC on r/RunningShoeGeeks
“Same here. Only occurs during my warmup. The discomfort goes away after I pickup the speed”— evoken_ on r/RunningShoeGeeks