When I first started swapping out animal products with vegan alternatives, butter was one of the easiest for me.
I tried Earth Balance Buttery Spread a few years ago and haven't gone back since. It's made from vegetable oil, but to me it tastes like real butter. They say their "proprietary blend of oils" is the reason for its buttery taste and texture.
It works for spreading on toast and also holds up to cooking and baking. I've used it in everything from cookies to making a roux and have not noticed a difference. It's also available in sticks that make it easier to use for baking.
A small number of people have told me they think it has an aftertaste that they don't like. Personally I don't pick up on that though.
Earth Balance makes a few different varieties: original, soy free, whipped, olive oil, omega 3, coconut, and a new European style. I haven't seen that one in stores yet but it will be interesting to try.
The original spread is made with vegetable oil, and a few of the varieties are organic. Most of them are pretty easy to find. All of the grocery stores near me have at least the original spread and some have more varieties.
Review: Earth Balance Original Buttery Spread
Taste: I don't notice a difference between this and real butter. Maybe someone who likes to eat sticks of butter would notice.
Texture: When cold, it's a little softer than real butter and a little firmer than margarines like I Can't Believe It's Not Butter. It melts like real butter.
Can you tell it's vegan? No.
Better than other vegan versions? Yes, but I haven't tried very many. Some people have told me they prefer Miyoko's. I haven't tried that one yet.
Worth buying again? Yes, I always have it in my fridge.
Overall: 5 out of 5