No matter what I mix this with, I can't get the taste of uncooked ground rice out. It is so grainy and almost metallic in taste.

Ok I have tried all kinds of protein powders, and let me tell you that some people are extremely picky and will find anything "disgusting". The truth is the vanilla flavored is delicious and I highly recommend it, brown rice is one of the easiest to digest proteins out there. As for the chocolate flavour I would advice you not to buy as the flavour is not as tasty (I still buy it, but I'm not picky) that being said vanilla is delicious, go for it
Goes Well With:
Anything, water, juice, milk

I've been ordering from MyProtein for years now. I recommend it to everyone. Recently I have also switched off of whey to be a little easier on my digestive system and the brown rice protein and vegan blends are still some of the best mixers and taste on the market for really great prices. Its hard to beat.
Goes Well With:
I actually really recommend trying these proteins in sweeter flavors in your baking, its a great supplement to increase protein intake and have healthier snacks around.

Was a bit nervous to try brown rice protein for the first time and a bit turned off by it at first but ended up enjoying it pretty quickly definitely the best non whey protein I’ve used
Goes Well With:
Oatmeal

The taste is inconsistent from packege  to Package specially chocolate flavor and lately is been undrinkable , as you can see my order history I buy this product a lot, and I'm  seriously thinking to change brand, which is unfortunately since your product was very good before, if you want you can reach me to see what we can do with the 3 bags that I open thinking that the taste was going to change. Sincerely, Angel Leon

This is a good product. Having now tried both, I would recommend the chocolate flavor over vanilla (vanilla isn't bad but doesn't taste quite as expected, but chocolate basically tastes like brownies). The powder is dusty but mixes well as long as you use plenty of liquids.
Goes Well With:
oats

Brown Rice Protein makes me thankful that I am not vegan. The unflavored verity is not overly offensive in taste (reminds me of Pea Protein), but what makes it a step below Pea Protein (and even further below Whey) is its graininess. While this is milled into a SUPERFINE powder (try not to breath in the dust cloud) it still is super sandy in the shakerbottle. This probably would be just fine blended into a shake with berries and what not. On its own, it's a slog. 
Goes Well With:
Fruit, blended into a shake

After reading some of the reviews, I thought the taste would be tolerable. However, I think I'd much rather eat dirt at this point.

I absolutely LIVE for my protein yogurt with the vanilla! Definitely very sweet, but so delicious if you're into that.
Goes Well With:
Yogurt, oats

I switched over from whey protein cus it was giving me acne, and it helped a lot. The protein mixes amazingly well, way better than whey isolate and standard. The only downside is its slightly grainy for the unflavored version. I got the chocolate and its less grainy. The flavoring is consistent with all other myprotein powders, aka too sweet and lacks flavor. But the price is unbeatable for the protein content per pound. I recommend getting unflavored and picking up some flavoring powders separately.