I am pretty sure that this is the cheapest on the market, and that it is effective. However, the taste is really bad, it really needs a flavoured version.

Although used a couple of times only, but the post workout recovery period decreased significantly. Less soreness with high intensity workout. Ready for the next workout really strong.
Goes Well With:
Whey protein isolate, BCAA's , EAA

I was not actually expected this to work but this is obviously working, I am able to see my muscles now and I can work out like a badass in the gym, I take 4 grams a day due to my weight ... it tastes horrible though, very bitter.
Goes Well With:
Protein shake.

Been reading about the bad taste of it but it truly changes the taste of anything you try to mix it with. Good side you get used to it after a few uses. The pouch though needs some fixes it can't be closed easily and the HMB is really powdery so will get all over the place.

Bought the unflavoured pouch. Words can't describe how bad this tastes and how long it lingers. The powder is so fine that even getting a scoop of it gets all over your hands, which then stink for a good 10 hours. On the plus side, I have put on significant muscle mass since taking this alongside creatine and protien powder so something is working.

Not sure why everyone complains about the taste. I've been warned that it's not the best if you get unflavoured, so I made sure I ordered summer fruits. Tastes quite good if you mix it with water or even better with any berry juice. But the best thing I discovered is when you mix summer fruits HMB with Vanilla Whey Protein + water. It simply transforms into a strawberry milkshake and tastes amazing! As for the efficiency, this stuff does improve recovery time a lot. Even if you do get the occasional DOMS after a really hard workout, the muscle pain doesn't last that long (before I would suffer from pain for days after a long workout). So it's a really good product, would definitely recommend it, just make sure to get a flavoured one if you are that sensitive to taste. Another benefit is to mix it with your protein before and after training. P.S. Be careful when opening the pouch, the stuff is quite sticky, so some of it might be trapped near the plastic zip.
Goes Well With:
Vanilla Whey Protein; Creatine Monohydrate

The new flavours are really good! Only just got it and right away tried the Cranberry/Pomegranate flavour and I am really impressed with it. Almost no hint of the hmb taste anymore, I was expecting it to be much worse. So i checked the label of how much they had to cut it to get it to that stage. The label now reads: HMB-Ca (80%), Flavouring (Colour (Beetroot Red), Acid (Citric Acid), Sweetener (Sucralose), Natural Flavouring Substances) This means that only 62% of your powder will be pure HMB now (since only 78% of HMB-Ca is HMB in the first place). The taste reminds me more of Rasberry to be honest but its not bad at all. Mixability is also a bit improved I'd say. It dissolves 100% with a bit of stirring.

First month taking this and have just ordered the 500g bag. I Started a cut / increased cardio to 5 20 min sessions a week, with reduced calorie intake. DOMS are still there, but only slightly < tired / drained muscle feeling, no pain > as i push myself hard, but noticeably less than they would be without this. Taste is really not that bad, i mix one spoon with about 200ml water, mix it in well, and neck it all down in one go, its a but sour, but really not bad at all. No problem with this supplement as i buy this for what it does, not what it tastes like, and it does what it says it does well. My fat has reduced, muscles have tightened - as it does with the all the work and the whole cutting process in general, but my muscles are still there, commented that they look bigger / much more toned than my last cut, and HMB is the only thing i have done differently this time around. Go for it, it will be worth it, if the taste kills you, mic it in a shake with blueberries / peanut butter / whey if needed. good luck and happy gains to everyone!

Took this I have gone massive , lifts are mental gone from 40kg dumbbell press to 90kg easy to , my calves for some reason have gone huge and lower back
Goes Well With:
Bcaa

I mix with this flavored soya milk and stevia Impact Whey Protein and the taste is bearable compared to mixing it with anything else.
Goes Well With:
Flavoured soya milks