internet still very good
speed is awesome for me
and with all the extra goodies it worth every penny that i pay

getting frustrated with UM.. nowdays people hardly can call me esp those using celcom.. call failed. Even my wife who is using UM also cannot call my number at all

On current plan I have about 90+ minutes of calls and 400 SMS per month... I guess whatsapp/viber will cut down the call/SMS though. Still considering, maybe will wait in case umobile got network problems with the switching to maxis these few months.

Rather use U28 actually, since even for U58 I'd still have to pay for any usage of SMS. At U28 some SMS subsidized, and I pay for calls (at 0.20 it'll be 20 ringgit for 100 minutes, which is still less than 58). If always finish my 1 GB before 3 weeks then consider U58 la, but don't like spend so much....
I'm using standard Maxis RM50 plan currently (with my wife as RM30 sub). We use about RM40 each, mainly SMS (up till 400 each). This is not counting our free sms to each other that is banyak banyak until cannot count liao. The large majority of SMS are to Maxis users though (about 65%) which is only 5 sen each. So total spend on SMS currently is about 30 ringgit each.. sometimes go a bit above the RM80 minimum pay.

Quite happy with Maxis, but their data requires to add so much..... price is killing

i think u get a u58 is more then enough.. once u got smartphone, u will mainly depends on whats app as  it become the must hv program for smartphone. at least u will save 50% of ur sms usage.. the rest of the sms was only use when :

1) u want subscribe to some service like bank credit card promotion
2) to non smart phone user