As others already said, 4 injections is much better and much more convenient than 2 injections. I used Humalog Mix 25 for a few months and it was a better alternative than Mixtard 30 (I wasn't educated enough on what to expect so I was ignorant enough to have a BG down from 18 to 3.9 in 45 minutes!!!).
To be honest with you, when my nurse suggested (and this forum even before she did) basal bolus insulin, I was scared to death! I had an emotional attachment to my older insulin (silly it might sound but I had my smiles and tears using Mixtard 30) and I found the idea of taking insulin and sleeping very scary!! I was consumed by the idea of going hypo and not being able to recover. I was having a stressful time as I was the only one who supported this switch of insulin. Everyone around me went bananas when I changed. I still fought for it, although I was scared, and eventually started a steep learning curve. 1 year and 16 days after this switch, I never had such control over my diabetes. I never had such flexibility. I could easily go from 24 to 3 juat from taking a 2 flights of stairs. My mornings were so bad because of the spikes I used to see.
I can't even imagine seeing myself on Mixtard 30 or any premixed insulin anymore. They are very outdated for an active person and for someone who eats a lot of carbs. Premixed insulin might be good for someone going low carb (that's what I read somewhere not sure) but definitely not me. The change is very worth it.
Finally, my meter is Accu Chek Performa and I recently started using Accu Chek Guide. Both are extremely accurate.