請問關於specialized的品質與評價 想請教各位大大~~

小弟最近看上了一台specialized的EnduroSL Comp(http://www.specialized.com/tw/zt/bc/SBCBkModel.jsp?spid=45729&eid=4344&menuItemId=11675)
想問一下這台車如果用在其(台中都會公園...樓梯(普通行人的那種）還有紅土波浪的跑道)功能與實用性算高嗎..畢竟這一台要價10萬還不給殺價..所以想聽看看其他單車大大的意見?(店員說這台是全台唯一的一台 部會撞車..不知是真是假..)
如果買新車可以要求店家換輪胎嗎(因為有給客人試騎過)
也想問一下關於specialized這品牌的品質與評價

車架
Enduro M5 alloy, fully manipulated frame w/ ORE TT and DT, forged HT, sealed cartridge bearing pivots, ISCG mount, replaceable derailleur hanger, 160mm travel
後避震器
Fox RP2 for Enduro. Ext reb and ProPedal
前叉
RockShox Lyrik Solo Air R, adjustable rebound, 20mm thru-axle w/ Maxle SL, tapered alloy steerer
頭碗組
1-1/8 and 1.5" Threadless, Campy style upper with 1.5" lower cartridge bearing
龍頭
3D forged alloy, adjustable rise, 31.8mm clamp
把手
Specialized Enduro mid-rise bar, 7050 alloy, 31.8mm, 9 degree backsweep, 6 degree up, 680mm wide
握把
Specialized waffle lock on grip (S/M) Specialized Thick lock on grip (L/XL)
前煞車器
Custom Avid Elixir R SL, alloy backed semi-metallic pads, 200mm rotor
後煞車器
Custom Avid Elixir R SL, alloy backed semi-metallic pads, 185mm rotor
煞把
Custom Avid Elixir R SL Hydraulic, tool-less adj. reach
前變速器
Shimano M665-E, SLX, top swing, dual pull for double
後變速器
SRAM X-9, 9-speed, mid cage
變速把手
SRAM X-7, aluminum trigger
飛輪
Shimano HG61, 9-speed, 11-34t
鏈條
SRAM PC-971, 9-speed w/Power Link
大盤
Custom Shimano FC-M542, 22S/36A with Gamut shift guide. S: 170mm, others: 175mm
齒盤
S22/A36
BB
Custom Shimano integrated
踏板
None
輪圈
Custom DT Swiss E440S, 26mm, sleeved w/eyelets, 32h
前花鼓
Hi-Lo disc, 20mm thru-axle, 32h
後花鼓
Custom Shimano M525 SL, alloy QR, 32h
鋼絲
DT Swiss 1.8mm stainless
前外胎
S-Works Eskar, 26x2.3", 120 TPI, tubeless ready, aramid bead, dual compound
後外胎
Specialized Eskar Control, 26x2.3", 60 TPI, tubeless ready, aramid bead
內胎
Ultralight presta valve
座墊
Specialized Format, hollow Cr-Mo rails, SL foam, S/M: 130mm L/XL:143mm
座管
2014 butted alloy, single bolt setback, 30.9mm
座管束
7050 hard annodized alloy collar w/ QR, 34.9mm clamp ID, black
備註
Protective clear coat, derailleur hanger, reflectors, owners manual

問一下這台配備部分有哪裡需要改進嗎??
麻煩各位大大幫我看看.....