It's very easy to clean and powerful enough for a portable blender. It makes less than 400ml of smoothies/shakes (not enough for me) and needs recharging after about 5 uses.Bought this to use as a quick smoothie maker or to mix up a smoothie from the night before. I tried it and followed all the instructions, charged it all the way, filled with frozen fruit to the 'fill line' and the rest with water. It torqued out in about 3 seconds. It let me keep starting it tho. So i kept trying it and shaking it, and after ~30x, it blended it all the way. I thought i could get over that and that it would blend pre-made smoothies fine but it never turned on after washing it. The only thing it says it to NOT submerge it, which i didn't do. Had to return it and figured after reading reviews of all of these blenders, i didn't buy another for fear of breaking more. Maybe use as an easy shaker bottle but idk how many times it will last.I bought this for my mother, for mother's day and she loves it. She uses it to blend frozen fruits for smoothies. I have used it to blend my protein shakes. It is very easy to clean and use.Great when they work. No rhyme or reason as to why they do or don't either. Got one as a gift, loved it for 6 months. Then bought one for office. The first one started getting unreliable so I gave it another shot and bought another one. Now the most recent one has water in the top part and doesn't work. I bought that one on May 14th! The first one works if I use the bottom of the most recent one. The one at the office seems to be solid. So it's a 1 in 3 shot. Looking for something more reliable but same concept. They are pretty expensive to be unreliable and have to throw away.I got this blender because of the price. Later I splurged and bought the more expensive one of Fresh Juice. I really wish the blending cap of this blender was in the bottom that way I don’t have to wash it before putting it back into my lunch cooler. The more pricey one does this so I can blend and drink without having to switch it out. Also, it only blends for a few seconds then stops. My other blends for 30 seconds then stops.Le traje 3 unidades a mis clientes la verdad realmente satisfechos. Super recomendableThe reviews aren’t wrong, but also the product says directly in the lid- no ice, no over filling. If you’re wanting a large shake w several things inside, not your product. If you want a light protein smoothie w a frozen banana or strawberries on the go, this will get the job done. Sleek, awesome sip spout and pretty fun to use. Wish I could add oats and multiple other things but it’s just not powerful enough for that. Not sad about this product bc I figured it wouldn’t be a ninja but def not bad for the price.First few blends were great.Frozen berries don’t blend well. The blender seems to get stuck and powers off, I ended up having to toss it. I am also now seeing struggles when blending oats, protein powder, honey, and milk (and yes, with full battery).La neta pensé que por ser marca oster iba a ser garantía. Leí comentarios que funcionaba para mínimo mezclar la proteina pero nombre se para a cada rato. Ma cantidad de agua que le entra es super poquita y si le pones de más se tira.La proteina no la logra mezclar por qje se para antes.Ni con tan solo 3 cucharadas de avena logra moler bien.Lo único que licua es platano en agua por que en leche no vale camote.Le cuesta bastante trabajo moler algunas frutas y/o semillas ya que tiene una hoja simple.Trabaja por periodos de treinta segundos y se apaga, hay que esperar y volver a encenderla para continuar la licuefacción.En ocasiones es necesario presionar bastantes veces el botón de encendido para que funcione.Yo no la recomiendo.Le cabe muy poco, se atora, dura muy poco la pilaPensé que la marca era garantía. DecepciónEsta bonita parece practica, pero no permite mucho líquido, deja de batir y oh sorpresa a los 6 meses dejo de funcionar, soy una persona que cuida mucho todo así que no se que pudo haber sucedido de un dia para otro dejo de funcionar la lleve a reparar y no tiene arreglo. Dinero a laBasura ?Muy buen producto, la marca la respalda, se queda con 4 estrellas porque la batería no le dura mucho, yo la uso diario y solo le dura para trabajar bien 2 días, trabaja bien otros 2 pero con interrupciones. A pesar de eso puedo decir que es un muy buen producto, lo recomiendo ampliamente