I've been researching at great length what my 1st big mod was going to be and I pulled the trigger today. I was researching mech mods at first but decided I am not interested in dripping or any type of system I cannot lay on its side without worry of juice spilling out so mech mods were ruled out. I then found myself torn between the evic, zmax, sid, vamo, tesla and svd. I watched all the pbusardo, igetcha69 and grimgreen reviews and read countless reviews on this forum and found the Sid to be the most desirable. The Sid is automatically in RMS mode, has a nice easy to read screen, is accurate with its settings, is lightweight, has a very universal 510/eGo connector that will seamlessly take almost any tank you can find, is not excessively fat or long and last but not least can be had for under $40. A few people have complained about the head acting weird but this is an inexpensive, mass produced and highly sold mod and nothing is perfect 100% of the time