I for one am a huge Sharpie lover. I swear i own more Sharpie pens than Staples! They are a reliable brand that never disappoint.

The highlighter collection that Sharpie sells is exceptionally good. They are easy to use, bright, bold, colorful, smudge resistant and they don't bleed through paper which is one of the main problems with most highlighters.
The price to buy them is very reasonable i would say. You can buy a pack of 6 for about 4 dollars in Walmart or Target. I live in the UK so I find it hard to buy them, but i go on holiday to America each year and stock up on them! I've found that you can buy them off of Ebay for quite a reasonable price, so if you live in the UK and won't be travelling to America any time soon, then Ebay would be the ideal place.

Here are some of many of the Sharpie Highlighter collections :
Sharpie Accent Highlighter Pocket
Sharpie Accent Highlighter Mini
Sharpie Accent Highlighter Mini Fashion Wrap (The Newest)
Sharpie Accent Highlighter Pocket Pink Ribbon (A Special Edition To Support City Of Hope Cancer Research Center)
Sharpie Accent Highlighter Tank
Sharpie Accent Highlighter Retractable
Sharpie Accent Highlighter Generation
Sharpie Accent Highlighter Liquid Pen
Sharpie Accent Highlighter Jumbo

I am a year 11 student and in many of my lessons, such as English , i have to use highlighters to, well, highlight important things. The most annoying thing i find with highlighter pens is that they tend to smudge writing and bleed through paper. I was so pleased when I discovered the Sharpie highlighters because they really brighten up my books!
The Sharpie Accent highlighters were named this because they have a wide range of vibrant colors. This is a well known brand of disposable highlighters and pens in the US, and now beginning to hit other stores in different countries around the world.

The design isn't 'unique' and it doesn't stand out. But the performance of these highlighters is amazing. The smell of them isn't strong like you would find with the Sharpie Marker pens, they have an odor free smell!
The usage of these pens is great. I used mine for about a year at least twice a week for essays and highlighting books and they didn't run out until the end of my school year which i found brilliant.

Here's some pros and cons i found:
PROS

Many vibrant colours to choose from
sturdy material, doesn't break if you drop it
plenty of ink
smell free
light, easy grip
ink dry's quickly
smudge/smear free
doesn't bleed through paper
good value for money
CONS

permanent, so if you get it on clothes it won't come off - if this happens apparently if you use a one dollar bill, it comes off!!
can't buy them in the UK - you can only seem to buy the mini one's and yellow one's

They are around £14.99 for a pack of 8 and for single one's they are around £0.95 - prices vary per shop